Hey, MIckey, cheer up. You guys have DIgital Performer (the latest version of which looks pretty hot) -- and now that Apple has bought Emagic to get the audio technology in Logic -- they're pulling that off the PC market. (Of course, I've only talked to one or two people in my life [in the real world as opposed to online] who actually used Logic on a PC, but it's the principle of the thing, right?)
And, of course, it's actually cheaper to set up a Pro Tools HD system ("cheap" isn't really a word that applies here, though) on a Mac than a PC -- because the Digidesign folks only support very expensive IBM brand PC models that actually cost more than "equivalent" Macs.
BTW, you should be mad at Sonic Foundry for not porting Sound Forge and ACID... not FL.
And while I'm unaware of any current plans to release a Mac version of Sonar, the folks at Cakewalk did buy and overhaul a Mac sequencer called
Metro. I haven't ever talked to anyone who has used it. Rumor was that they bought it to get a leg up on developing for the Mac. If they ARE going to do something with Sonar for the Mac I'm sure they're waiting for Apple to fold the audio and MIDI technology they aquired from Emagic into a future version of OS X.
The main reason you might see more of the kind of apps you mention for the PC is that MS took the course of building a lot of multimedia and audio functionalities into the Windows OS -- while Apple counted on individual Mac developers to "roll their own" low level audio and MIDI functions.
While Windows has supported multi-channel audio and has offered a standardized plug-in format (DirectX) for many years, Apple has lagged far behind -- which is why Opcode's OMS became a de facto standard. When Opcode went out of business, active support for OMS was finito.
The Mac Sound Manager, with no multichannel support, big latency problems, and no full-duplex capability, was an even bigger problem that had to be worked around. And it fell to the third party developers to create their own low-latency driver systems like ASIO and EASI. And, of course, each software house had to develop its own plug-in standard like VST (as opposed to the Windows DirectX standard).
Now, it appears that Apple will be playing catch-up in future versions of OS X and some of the burden on software developers will be removed.
But don't beat up on the Windows-only developers too much for not supporting the Mac. You have to remember that software development is very, very expensive and difficult -- even with an OS that offers extended multimedia support. If you develop for windows you're reaching approximately 95% of the market. It's prohibitive to start a whole new development process just to try to penetrate a submarket that amounts to only 5 out of 100 computers. Add to that the fact that some very powerful and thoroughly entrenched packages already "own" that market -- in addition to the concern that any product coming from the Windows world would be seen to be a "carpet-bagging interloper" and would undoubtedly be subject to an extreme (if typically uninformed) backlash -- and it becomes clear why you won't probably won't see any major Windows apps ported over soon.