I was one of the buyers of last year's iMac screen probs that came with a majority of the then new I-5s (unheard of when mine arrived and the first early adoption for me).
Scrimped and saved, backed up all and cleared the studio for the new machine.
Powered up and was met with the front window of the Millenium Falcon, then chartreuse bands, then crazy light show flickering and a huge x-ray of the cursor's pixel layout floating on screen.
Had to send it back and was told I'd wait a month for the replacement.
The $15.00 iTunes gift card! from customer svc didn't sit well so I pressed for next day delivery of a new machine and a $60 dollar credit.
I received this machine within three days.
and yes those power cord malfunctions on the older macbooks should have been an instant recall or replaced for anyone who purchased them as they eventually would fail. Apple never even made a new one under $100! and after market attempts were faulty as well the battery fires should have gone class action - then we'd all get a .15 cent iTunes gift card!!