Specialised video game stores have almost completely disappeared in my country. The pop and mom store is entirely a thing from the past. There is one chain of stores still (called Game Mania), and they've been in quite a bit of financial trouble, even went bankrupt and rebooted recently. They're typically incredibly overpriced, and the only reason I ever go there is for store exclusive LEs or CEs.
Other than that you have to get your games in either supermarkets, or in video game departments of multimedia or toy stores.
But in general I hardly ever buy games in brick and mortar stores anymore, mostly because they charge way too much. The majority (80%) of my gaming purchases I import from UK online stores which are way cheaper.
So, yeah, that makes me wonder too how in the US that type of specialised game store can survive still. Here in Europe in the cities most stores (including said video game stores) are even within walking distance from people's homes, yet they don't buy there anymore. In the US I assume many people have to drive quite a bit to even get to the store.