I read a few thread on what kind of camera body a beginner should buy and the general consensus is to not buy anything to fancy until one is confident he/she is going to stick with the hobby/profession. Does that apply to Lenses as well? I understand that digital camera get outdated very quickly and buying an expensive camera now could be a wast of one for a beginner but do lenses devalue as much or as fast? What I would like to do is buy very good lenses that I could use on a beginner body and when the time comes and I upgrade to a professional camera I can still use the same lenses rather than have to buy new lenses as well. Thanks in advance.