here's how the US regional airline market goes:
every dog has it's day
10 years ago: good airlines
Air wisconsin
Atlantic Coast Airlines
Piedmont
Allegheny
Comair
Continetal Express
chataqua - nearly bankrupt
now
air wisconsin OK
ACA bankrupt
piedmont absorbed into allegheny barely alive
Comair sold for parts
Continetal express ok..but losing lots of money
chataqua - worth more than many major airlines
us regionals very fickle