If buying that bike will make you love the sport even more then do it! I know that I have a bike that is way outside of my ability. It's like driving a Ferrari with me as a Ford Pinto engine So don't worry about what other people say, you are having fun with the sport and besides, "they" (whoever would mock you) are just jealous cause they can't afford it. Either way, just enjoy the sport and have fun with whatever you get.

Me personally, I've got some sentimental value behind my own bike. (http://www.gripandhammer.com/2009/10...ittle-monster/ ) Even though the bike is less than a month old, it was built by Mark "The Grip" Allen's brother and he spent the whole evening entertaining me with racing stories from the 1990's that brought back some great memories while we built "the little monster".