Grand Slam Sports Shop

Excellent store, we shop here frequently, Dave is always fair and honest with great prices and deals. He always makes you feel comfortable with any questions you might have. We appreciate having his store in the community which allows us to keep buying cards and continuing to have a fun time collecting. We highly recommend his store to all customers whether you're a first time collector or a veteran collector!! Thank you Dave!!

Love this place. I live in Grand Rapids but work in Detroit. This place is way better than what we have in GR. Owner is cool, super fair with his prices.

Love this place! I highly recommend going there! Look at what I pulled my second time going there :)

He's had what I've been looking for the last 30 times in there. Just can't help but give all my money to him! I also let him pick the hobby boxes and he has blessed me with some awesome additions to my collection

This has been my card shop for 20 years and ran by the same owner. He carries an amazing selection of new and vintage cards along with all of the cart supplies that you could dream of. His prices are great and he doesn't overcharge. He works with you on payments and if you need something just let him know when he will order it for you. He knows the industry front and back and will give you sincere advice on whatever card topic you may have. I recommend this place over other card shops in Michigan This is the place to go if you need something.
I recommend stopping in taking a walk around and I guarantee you'll walk out with something.

Stopped in on a road trip and had a great time chopping it up w the manager Dave. Bought some packs of the new Topps Baseball product.

This is a helpful and cool sports card hobby shop!

Great prices and helpful feedback. Do all your sport card shop here at Grand Slam..

My favorite card shop around! Top notch store for collectors and hobbyists. Always have the lowest prices around. Dave is one of-a-kind.

I have visited this shop and it's way above average. Someone in comments was complaining about cards not having prices but I bet he wouldn't have wanted to buy a Tatis Jr. Rookie the day after scandal broke at last week's price. Just saying.

Went in for my first time today and Dave, the owner, was very helpful and nice. He was willing to talk shop and I really appreciated that ! Lots of different products with a good amount of singles and memorabilia. Prices seemed to be in line with the Market. Would definitely recommend as a valued and trustworthy Sports Card Shop.

Nice card shop! They carry retail, hobby and jumbo boxes, supplies, and tons of older sets and singles. Worth a visit!

I love this place. Just leaving there now. Walk thru the door and I felt like a kid again. Great selection of vintage and new. Very fair prices. Dave is a great guy who enjoys talking about the hobby with you. I highly recommend.

Truly a great sports card shop! Singles, hobby boxes, supplies, various sports collectibles & memorabilia and ALWAYS at a very fair price. Dave could be way more opportunistic with some of the hot releases but he always stays true to the appropriate range of retail pricing. Wonderful store!

The store has been there seemingly forever. Through good times and bad they have remained. He understands that people are often there to browse, but he is very cool and always willing to share his knowledge.

Made my first visit today and Dave is an awesome person and not snobby at all like I’ve experienced in other hobby shops. Lots of fire on those shelves with good prices. Highly recommended 👍👍👍👍👍

Great shop. Good selection and fair prices. Brought my daughter here for the first time as she is new to collecting and she was thrilled. She can't wait to go back.

My son and I were visiting the Sterling Heights area from out of town. We wanted to go to a local car shop and looked up grand slam sports cards! Not only did he communicate well over the Internet to make sure we knew where he was located, but once we got there, he took care of us! We purchased some products from him and he even helped out my son and gave him a few promo packs and a poster! Made my six-year-old extremely happy! Thank you and we will be back once we are back in town!

Just traveled an hour to get there and it was more than worth it! The selection was awesome! The guy here knows his stuff and he's also easy to shoot the breeze with. I'd recommend this place to anybody and I know I'll definitely be back!

Great shop. Drove an hour with my two kids to check it out and the owner made me feel right at home. Great selection and great prices. We had a fun time.

THIS PLACE IS A GEM!!!
Since restarting my sport card collecting, I've had no luck at retail stores in the Tri-County area. I have stopped by Grandslam Sport a few times and have had all the luck I need, Dave the owner is great, his prices are the lowest, you will not find any better prices Anywhere!!!!!! The shop has all the proper fixings making it a Tier 1 Hobby shop for those interested in Baseball, Basketball, Football and Soccer sport collecting.