There is no store in the NW of the CR. There is a ticket office which sells nothing but tickets (to my knowledge). There is also a liason office next door to the ticket office with pictures of what the finished hotel should look like. It's also where you go with your complaints.
Last May when we were there the store sold some T-shirts, hats, stuffed animals, etc. Not a great selection. There were no food items or pharmacy items like the store at SoG.
Store does not have drinks, etc., but does have a limited selection of souvenir items (similar to the ticket office in old SoG, NOT the exchange store).