I believe it is...I do have a "Brand" loyalty..and for a reason...The company that I am most loyal to...has been consistantly top quality, featured layden, with the tools and sounds that I like best...I have used this brand as a benchmark, that I judge all other brands..
This is not to say the other brands do not make fine products...I just think across the board my favorite brand has been the leader in quality products..Have they had some products that I dislike...you bet, but overall far and away the best line up to me...
Brand loyalty makes sense, if you are confident in the company..