Grand Slam Sports Cards Idaho (4.3 ⭐)
Independent collector notes and community insights below.

🏆 About
Grand Slam Sports Cards is a premier sports card and memorabilia store, in Nampa Idaho, that offers a vast selection of trading cards, signed memorabilia, sealed wax and more. Our passion for sports and commitment to providing high-quality, unique items sets us apart from other stores.
💬 Collector Notes
Independent editorial assessment
Grand Slam’s a clean spot with a wide mix—decent wall of wax and some graded slabs, though it leans a bit more mainstream than vintage. Good for TCG heads too; they move a lot of Pokémon and Magic singles. Staff knows their stuff, and they’ll chat comps without ego—worth a stop if you’re hunting raw for your PC.
Who this shop is (and isn’t) for
✅ Best For
- Sports card collectors
- Vintage collectors
- High-end / investment collectors
- Slabbed card buyers
- Sealed wax buyers
⛔ Not Ideal For
- Pokémon/TCG collectors
- Kids & beginner collectors
- Looking for deep singles inventory
- Seeking in-store play environments
⭐ Review Summary
Customers consistently praise Grand Slam Sports Cards Idaho for its friendly and knowledgeable staff who are eager to help both new and seasoned collectors. The shop is noted for having a solid selection of sports and TCG products, and reviewers frequently mention that the store is well-organized and clean.
Google Reviews Rating: 4.3
Total Reviews: (63)
📍 Location & Contact
- Address: 2108 Caldwell Blvd ste 113
- City: Nampa
- Phone : (208) 546-0075
⏰ Store Hours
- Sunday: Closed
- Monday: 10 AM-6 PM
- Tuesday: 10 AM-6 PM
- Wednesday: 10 AM-6 PM
- Thursday: 10 AM-6 PM
- Friday: 10 AM-6 PM
- Saturday: 10 AM-6 PM

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