Avid isn't doing well.
MOTU finally decided to port DP to PC - which may be a sign of them struggling and seeking new revenue.
Steinberg has been sold a few times in the last decade.
Cakewalk first announced a partnership w/ Roland before it was bought by them.
Sony acquired Sonic Foundry.
A few months ago, Bias, makers of one of the most renowned audio editors on Mac announced they were going out of business.
So whatever your software and platform of choice are, you just can't take things for granted.