I usually fantasize getting one of these keyboards, especially the bluetooth one and hooking it up so it's compatible with my computer.
However, yeah it is a waste of resources to get a new one, but I'm starting to notice my keys getting a little stiffer and worn down. Instead, though, I'm thinking about digging around my parents house for an older model. I like the retro look, even if it is a behemoth on my desk.
And who cleans? It's fun to swipe a card between the cracks and see the amount of hair and dandruff that I pull up.