I'm not interested in upgrading hardware. The computer is slowing over the years and IME that means about two more years it will be heading out the door.
I'm just not feeling changing the OS either. If it was less than a half hour to do EVERYTHING then fine, but somehow I see hours of time spend tweaking, learning, etc. I just don't want to spend hours when the only consecutive hours I have anymore or on the weekend.
I think I have resolved it to backup and roll with it. When it dies/as it dies, replace.
If you want to give Linux a spin, then you could try a Live CD like Knoppix. Nothing to install, and you can be up and running in a few minutes.