I just bought an iMac 27" i5 Refurbished from Apple about a week and a half ago. Now, my superdrive is messed up. Discs are getting stuck, scratched and now not reading. Other than the superdrive the machine works great, no yellowing (if there is i can't notice it), no HDD noise, no dead pixels, etc. Now since I am within the 14 day period I can just get it replaced by Apple online. But, my concern is getting a replacement machine with yellowing and dead pixels, because Apple doesn't consider these defects for the most part. Should I just get the superdrive fixed or get the whole machine replaced by Apple?