I went in, looking to buy a cruiser bike. After about a half hour, I'd looked at every cruiser-style bike they had, thinking that eventually, a salesman would come by and ask the ""Hi, how ya doing, any questions?"" sort of thing. Nothing. Tried to make eye contact, but couldn't get any, and I wasn't in the mood to beg someone to take my money, so I walked. You might have better luck.
Pros: No pre-sale service, I can only imagine what it would be like after the sale!
Cons: I still have my money!