hmmm, I see what you mean. I just don't understand what wrong with linux. It's great. I mean amiga willnever catch up.
I also started on the amiga and loved it (still do) but in hindsight its clear the commodore had no idea what the future would hold, the internet, steaming media, realtime 3d rendering... the amiga missed the boat by quite a bit quite a long time ago. :-D
as for highend audio driver... there are lot of driver for the linux, have you check recently? Also if you are writing software why not write a driver for your audio cards? Heck you could even relese it on open source and help the next guy,, the true amiga sprit. BTW there are even fewer drivers avaibale on amiga