Good inventory, so-so sales reps
I'm a guitar teacher in the Bay area and I usually tell my students parents to go to Guitar Showcase because Guitar Center has horrible sales people that aren't so much interested in the development of a young guitarist but selling stuff. I have little 10 year old kids coming to a lesson with an adult-sized dreadnought guitar.
BAD SALESMAN! He told them that it fit fine, which it didn't. The student couldn't play it, got frustrated, and eventually got a guitar that fit.
BUT for folk that know what they want, this place will DRAIN your wallet :) Their classical guitar selection is poor but that's not what they specialize in.
If you like the prices and inventory, order on-line. If you go to the store, good chance you'll pay for more than the items you wanted! Store is better off with less salespeople, one or two real experts, and just normal folk running registers.
If everyone has their own expert opinion... nothing's true.