JWolf said:
I have no idea what sort of stores you shop at, but here, the big chain bookshops do not carry the items needed to do your grocery shopping and your clothes shopping.
We don't have Walmart here but the constant complaint I read on these pages from US fans is "Heavily-discounted Star Trek novels are so hard to find at my local Walmart these days, and I had to drive to the next suburb to find them", or words to such effect.
Here in Oz, we have chain stores such as Big W (Woolworths Variety, in the ol' days) and Target, which do carry paperback and hardcover novels at massively-discounted prices (not ST these days), plus a huge range of food, toys, electrical goods, clothing and furnishings.