That's what bugged me, from what I've seen those available at these shops have been opened. Yet I do know that several though raw video game grading was special for those I've seen. That said, are there enough out there to pay for slabbing to make the venture worth it? Opening business suggests there is.
Even half price books has things like duck tales for NES raw for $250, that's a hard kind of price for such a store.
At first I thought perhaps pricesmart and or values were not so set in stone, kind of like Nintendo Power, but I'm not sure