Grand Slam Sports Cards Idaho — Local services in Nampa

If you're a sports card collector in Idaho—or even just passing through—Grand Slam Sports Cards is an absolute must-visit. This place is a dream come true for collectors of all ages and experience levels. From the moment you walk in, you’re greeted with a welcoming atmosphere, knowledgeable staff, and a sense of community that’s rare to find these days.

The selection is phenomenal. Whether you're hunting for the latest hobby boxes, vintage gems, autographs, graded cards, or even memorabilia, they’ve got it all. And if you’re chasing something specific? The staff goes above and beyond to help you track it down. You can tell these guys aren’t just selling cards—they live and breathe the hobby.

Prices are more than fair, and they offer honest trade values. I've never felt rushed or pressured here—just respected and genuinely appreciated. And the shop is always clean, well-organized, and buzzing with energy.

Bottom line: Grand Slam Sports Cards is hands down the best card shop in Idaho. Whether you’re a die-hard collector or just starting out, this place will remind you why you fell in love with the hobby in the...

Went in with a collection and was offered really really low on it and decided to go elsewhere. The customer service was not good and their rating definitely shows it. I later ended up with more autos and more slabs and tons of rookies (not all junk) and I went in again and the woman working there told me the person who buys is gone and to come back tomorrow. I work a lot and it’s incredibly inconvenient to keep coming back because no one can buy. I ended up showing up again and the son (whose super rude) looked at me and said the guy who buys stepped out again… this was super frustrating… he barely looked over all my stuff and passed on my rookies and offered me $250… $100 less than I was offered before and I added MORE good stuff. He doesn’t know what he’s doing and this is all over a span of 2 months it’s not like football season is in and people are hurt and cards went down. I don’t understand how people here can go back on their word and also make it here in the shop his business ethics are...

Hands down the best local sports card shop around! Whether you're a serious collector or just getting into the hobby, this place has something for everyone. The selection is always solid — from singles and packs to hobby boxes and supplies — and the prices are fair. The staff is knowledgeable, friendly, and genuinely passionate about the hobby, which makes the experience even better. I've found some great cards here and always look forward to stopping in. If you're into sports cards, this is the shop...