I love being a bottom feeder for technology as I write this on my $300 five year old eMachine desktop. A dinosaur that still works for me.
I only replace stuff when it goes out or becomes non-functional because of updates (like sadly my Zen MP3 that can no longer play Netlibrary ebooks because of licensing lock out). Still using a three plus year old Tracfone as my cell phone for about $8-$9/month. You can burn through money pretty quickly chasing the shiny new technology.
Get back with me about ereaders when they crack $100. I would like to use them to download public domain documents and read them (lots of great stuff out there) just like free public domain audiobooks/lectures etc.