First computer I ever bought (flowerpower iMac), I ended up having the optical drive replaced five times (four times after the first year), and they replaced my mouse when the cord got frayed. The sheer amount of money I saved due to Applecare has pretty much assured me that I'm going to buy it for every single Apple computer I buy from here on out. Getting about $1000 worth of parts and labor out of a $150 warranty basically means that even if I have no problems on the next four macs I buy, I'm still ahead.