Computers
I got my first computer in March 1999 for my birthday, and have been collecting more ever since. Currently I own about 15 (well, one is technically owned by the company I work for). 6 of them are in more or less active use.
The things I value most in my computers are stability and open software. Plenty of RAM comes right after. I don't care much about hard disk space in most cases, as long as Linux fits there. Storage disks are of course an exception. I also like stylish cases, especially those from Lian-Li.
I've omitted trivial stuff like generic mouses, keyboards and cases from the component lists.