For the several Mac users out here: What's a reasonable lifespan for a Mac?
I have an iMac purchased a full five years ago and I run OS 10.3. It hasn't crashed yet but it's getting sclerotic. I don't do games, mostly word-processing.
Does an upgrade make sense? What would it cost? Or should I make do until September when Snow Leopard appears and spend the $1200 for a new setup?
(I do Mac because I've always done Mac.)