When we went to test ride bikes for my wife, they spent time with her on the trainer on each bike she rode adjusting the seat position, stem length, etc, before we had spent penny one. Also once it was in the ballpark, they sent us out the door (I brought my bike so I could ride around with her) for as long as we cared to go on each one. She rode 4 bikes that day, and they all got the same treatment. I think your LBS is full of ****, if you are looking at 5000 bikes, the least they can do is do some basic set up work on them so you can ride them and make an informed opinion. Once you have decided and bought the bike, then the pro-fit makes more sense.