The environmental, material, and human costs that went into making and then destroying 2000 of these things matters too. What a waste!
There are problems with Gnome and GTK+, but what surprises me is that KDE and QT have managed to remain consistently, in the words of RMS, butt-ugly throughout the years. It's like a requirement for each new release to be at least as ugly as the last one. Even with plasma and fancy 3D effects, still that same ugly-mugly, kinda-boxy, badly spaced, wierdly rendered fonts, dumb controls, QT look. My love for gnome has dissipated markedly in the last few years with the gnome 3 disaster, but it is hard to imaging replacing it with, ugh, butt-ugly kde.