adobe owes where it is to pirates. they sell it for several hundred dollars because its "professional grade" tool set, when i want to bet more people use a pirated copy instead of a real one. however adobe makes its money off the commercial market.
Microsoft also owes much of where it sits to piracy.
the reason you pay so much for windows is because... well... do you have much of a choice, you either use the os that damn near everything is developed for, use an os that has next to nothing developed for it, or use an os that is community support and takes real tech skill to use. they got you by the balls and they know it.
you think a pirate, if they couldn't get it for free, would pay for it? there are rare exceptions but generally if someone is pirating something, they WOULD NOT pay for it even if it was borderline free.
considering that the complete version of win 8 will in all likely hood cost 300-400$, this is by no means cheap.