DVD
There is one solution to that and the industry shoots itself in the foot at times because of it: You can forego upgrades for a long, long time. Sure, I just bought a new PC for the lab because I needed one there. But I can and on occasion do schematic entry on this here newsgroup machine from the mid-90's. When working on schematic capture or filter design I do not notice any significant difference in productivity versus the new XP machine. Oh, and it has a real CRT where I can see stuff without glasses even when the sun hits the screen.
Did I mention that we do not own a DVD player at home and that one can live just fine without it? Or that the old 25" analog TV still works like a champ? That my car does not "feature" electric this, that and the other thing but passes smog with flying colors every time? That this consulting office is usually heated by a wood stove? That I split the firewood with a hydraulic cylinder driven by an engine built in 1942? That the 1950's tube radio here in the office sounds better than them newfangled MP3 players yet never needed new electrolytics?