This actually has very little to do with the MacBook Air, but I would like to present my problem in a general manner that anyone could respond to. Starting with a generalization. I purchased a device that I had to replace twice and now I'm facing a third replacement. The problem is not my fault, and it's still in warranty. Specifically, I purchased a Surface RT from Microsoft on launch. The SD card reader was broken and it took three units to get a working Surface. However, that surface has developed a problem with the volume button not working. I'm not alone and I didn't damage it by dropping it, etc. In general, do you think it's justified for me to expect a *full* refund? If it was Apple, would you want a full refund rather than another replacement device? Instead of getting another Surface RT that's now out dated, I would prefer to buy an iPad so I can take advantage of continuity and all the apps the Surface lacks.