Gosh,I better jump in here and make you feel better!
The Cincinnati Ohio craigslist has a nice Mac IIsi system for $300!!!
And someone has been trying to peddle a older PowerMac set for $650,now down to $160 after several months.
But IMac crt models appear fairly regularly for $20 to $150!
I have a PowerMac 8xxx picked up at a summer hamfest for $1,and several "pizza box" PM for $1 or less.Including one that was once used at Compuserve customer service.
Then again my Lime /DVD cost $1000 plus new .
Two thoughts:is it worth 40 quid to YOU?
Throw away a working computer(radio,car,frisbee)

?Oh the horror.