Power Mac G3 for 10 bucks!
Recently I bought Power Mac G3 (300MHz, 64MB RAM, Ethernet, CD-ROM and no HDD) for $9.99 (plus shipping $32.50):
To make it working I added CompactFlash 2GB (around $10) and CompactFlash-to-IDE adapter (around $5):
Adapter has female IDE connector to allow connection direcrly to motherboard. Also I put new battery ($5) there:
Then I installed Debian Linux on it and got working 300MHz PowerPC G3 system for below than $70. I think it’s pretty cheap