I've was trying to decide between a maxed out Air and Pro recently. I really like the form factor and portability of the air, but the thing that put me off the

I've was trying to decide between a maxed out Air and Pro recently. I really like the form factor and portability of the air, but the thing that put me off the Air was longevity. Right now I think an Air with 16GB RAM should be fine for all of my workflows. I might occasionally do something CPU intensive enough that it will throttle temporarily, but 99% of the time I'd expect performance to be comparable to that of the Pro. However, in 2-3 year time I don't really know what I'm going to be doing – I could be working on a project that requires a lot more CPU. I also know that even if my workflow is roughly the same the same software in 3 years is going to demand more resources so every year the thermal bottlenecks of the Air is likely going to become more problematic. So while the Air might be fine as a dev machine today, I'd worry in 3 years I'll regret the decision because my machine is now constantly thermal throttling. Plus, given the base Pro comes with 16gb, a faster SSD and slightly faster CPU (even when it isn't being throttled), I'm not sure the slight amount of money you'd save on a 16gb / 24gb Air is worth it... I think the only reason to get the Air is as a dev is if the form factor of the Pro is a deal breaker.