When we were shopping for my wife, the LBS would have 4 more bikes ready for her to ride before she even got back with the first one. AND, they let me take a bike to ride with her even though I obviously wasn't buying for myself. They let me take expensive bikes that I would never afford, too!
The second shop was a little more reluctant but I told them they were crazy if they wouldn't let her ride a few, so they let her ride ONE. I thought that was pretty weird.
Needless to say, the first shop, where we ended up buying her bike, got all of our business until we moved.