That isn't what I'm comparing though. My use case is obviously different. For me, I'm working on software, I'm compiling software. On an ARM machine with no moving parts, this is a silent activity. On every other machine, this is far from silent.

I brought up the Air mostly because I didn't know what the noise was when he started the game. I thought that the Air didn't have any moving parts. In fact, I'm still debating getting one, but a machine that's silent at 250 that can do what I want it to is a much faster decision than one that is ~1000.

I know my use case isn't typical, but it is the one I rely on when deciding what to get for myself, and silent is good for my needs, and how much noise the computer makes when I've got all cores running on a compile is a factor, for your needs it may not be, or you may not do the same type of work.

The point I'm getting at is that no matter what I do on a machine with no moving parts, it's going to be silent. An older laptop on eBay may be more useful for some people, and I'll never fully move away from a workhorse machine until ARM performance is on par, but it's still nice to have when she's sleeping and I'm still mulling over a fix.