Sometimes I wonder if I should switch to intel too... The prices have dropped so much lately. You can get an original white macbook for close $100 now...
I paid $100 for my black Macbook, albeit with a dead hard drive. I threw an SSD in and it's as fast as my 2011 MBP, although it's "stuck" at Leopard.
I also made $140 for my mid-2009 White Macbook(can run Yosemite officially). It was working fine, although I also put an SSD in it. It came with an aftermarket battery that died after 3 months-I replaced it with a gently used(6 cycle) OEM battery for $50 that works perfectly.