I guess I just think it's sad because when we purchase our gear (film cameras) we are assured it will hold value. Hell I've bought into systems knowing that if it didn't work for me for whatever reason that I could still sell it and get my money back out of it. Digital is disposable. You buy a camera, then 3 to 5 years later you upgrade. That's what sad to me.
Good lenses seem to be holding their value quite nicely, and they often make up a significant portion of the photographer's investment.