IMac power button broken.  What gives?

I purchased a 2006 intel iMac on craigslist. It worked fine the first day. Next day it wouldn't turn on.
Tried standard stuff like using different outlets, making sure cord was tight. When it's plugged in I can hear a very light high pitched whine (similar to what you'd hear when turning on old TVs) but there is zero response to the power button.
The button seems a bit odd, like it's pushed in to far, doesn't always bounce back, if I run my finger in circles the button seems to make it's way back up. I tried the unplug for 15 sec, plug in, wait 5 sec and hit power trick. No luck with anything. Any ideas?

To me it sounds like you have two choices:
1. Ask for your money back.
2. Work out a deal with the seller to pay for the repairs. (which most likely will, well could add up to as much as buying a new 21.5")
Dennis

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