Well, anyone that wears shorts and sandals and is over 20, deserves it.
>Current rMBP is unusable outside in summer due to hot chasis...
Maybe sit on a table? I use mine in a country that frequently gets 38-40 oC, and in a country that is constantly Lousiana-summer level heat and humidity (Singapore) and never had much of a problem.
Or one could use any kind of towel or pad below their laptop.
Kind of reminds me of the Louis CK routine about people complaining about trivial things (e.g. the food) while flying, sitting on a chair in the sky, across thousands of miles, in a few hours (something that just 3-4 generations ago took days or even months, discomfort and a few deaths along the way).
We now have undreamt-of power in our PCs or even mobile phones (power which used to take a device as big as a house and with its own cooling infrastructure), and we complain for them being uncomfortamble to have on our bare laps...