well it is effectively the monopoly in the sense that they bind there OSX (i like) to their hardware (i mostly dislike) only.
i do not see the problem to pay for OSX even more than for MS - but running on an arbitrary PC.
if they were more open-mided they would easily make more money on OSX than on their (often deficient) hardw.
perhaps there is even some conspiracy affair with Microsoft.
BTW, customer's demand for the OSX on non-apple comnputers would be another nice poll.
You're in a tough spot. Your choices are to buy hardware you like running an OS you don't like, or buy on OS you like that runs on hardware you don't like. Boy...that sucks.
Anyway, effectively a monopoly isn't the same thing as legally a monopoly. You don't have to use OSX if you don't like the terms of the contract they require you agree to (EULA) before using their copyrighted software. Apple's been down that OS licensing road to the brink of disaster and I'll bet you they aren't going down it again anytime soon. They're a hardware company (when it comes to computers). They'd lose a bundle. Anyway, even though it violates the EULA, you could still build a Hackintosh if you wanted. Probably unlikely that Steve will send anybody after you. Unless you try to make a business out of it, like Pystar.
Bottom line, Apple has no legal obligation to meet your hardware or software expectations. If enough people don't buy their stuff however, well, that's the way to get them to change their mind. So, your best option is to vote with your wallet and buy something else. Send Steve a message - buy an HP with Blu-ray.