I think most people stick with a brand they are familiar with. I have never tried any other brand except for my Vikings, mainly because the dealer is in my local Joann store, and her service and knowledge is beyond spectacular. The other dealers are too far away to make checking them out practical.
I would say for anyone considering a new machine, to make sure you have a GOOD dealer, and good customer service. You never know when you will need it. Also what is important to you in a machine may be far different than what I need. Buying a sewing machine is really no different than buying a car, or even a house for that matter. Take your time, and get informed.