Hey all, I have a couple of questions I wanted to run by the community... my 3 or 4-year-old MBP (older model, not unibody) had its logic board die out on me this past week. I've taken obsessive care of my MBP, but had a few problems with it, including: went through two batteries optical drive stopped writing to DVDs logic board failed Now the first two things on this list I could live with, but the last one makes it a little difficult to do anything (since it won't turn on). I purchased it as a refurb, so I'm not sure if that could have had anything to do with it... but I'm trying to see whether these things (mainly logic board failure at this age) is common. Also, with a price tag of about $500 to repair the board, is this MBP worth repairing (is its current value a few hundred more than that)? Vitals: 2.4 GHz Intel Core 2 Duo 4GB 667 MHz DDR2 SDRAM Mac OSX 10.6.8 TL;DR: Is it common for logic boards to fail after only 3 or 4 years? Is a MBP of this age worth dropping $500 on to fix? Thanks for any advice!