I'm sure they do. I'm also pleased that they do, because it is that healthy self interest on the part of MS that brought us XP. Just like new technology, financed in part by anticipated sales, is bringing us always better 4 wheel drive vehicles.
It's called capitalism, something I believe in.
I'll keep sending them money, because (broken record here) they've made my life, simpler, easier, better. All for a couple hundred dollars.
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And you'll keep paying Cadillac prices for Ford Pinto software... because of fixed pricing, the fact that competition has been ejected from the market, and you (being a non techie) really have no other choice but to run the OS of the masses.
This is socialism, pure and simple.