I have not heard of any Power-On problems with the Canon SD series of cameras.
Since Canon Service has stated that it costs $140 to fix, I would have to assume they found a problem that is not easily fixed.
You might consider looking at the Canon A1000IS camera.
It sells for $140 new.
i received the canon powershot sd950is as a gift last year and the past month i tried to turn the power on and it wouldn't even turn on. even with a fully charged battery, it wouldn't work. does anyone know of any solutions to this problem? i sent it to canon service center and they said it would cost about $140 to fix. i don't want to spend that much to fix it...