My 12 y/o son is so excited. Found him a pristine Mid-2010 27" iMac for $100. Going to give it the SSD upgrade but he's stoked to start recording music with it :
Installing additional SSD in Mid-2010 27" iMac
iMac Repair & Upgrade, Same Day Services
How to Upgrade iMac Hard Drive (2009, 2010, 2011): EveryMac.com