Yeah... why not...
I've always been pretty loyal to what I know. I've tried dozens of running shoes, but I always come back to Nike. It's weird, some of the other manufacturers have made some shoes I really liked, but they almost always broke down too quickly or didn't perform as well as the Nikes.
I'm not quite sure about bike manufacturers, since I rode a Trek for 18 years before getting my new Fisher. I never thought I'd get anything other than a Trek, but I found myself priced out when it came to choosing a frame that I liked. There are so many manufacturers out there! You can't demo them all, can you? That being said, my friends who ride GT's love them...
I read the reviews too, but I guess you really have to ride it before you can make up your mind. I also like bikes that are pleasing to the eye. But performance is the name of the game really...