Having gone from corporate to airline and back to corporate during the " good times" I have to ask you:
Why would you want to give up a G550 to fly in the airlines with 50% money,10 times the grief, surrounded by 10,000 wanabees that are happy to do the job for nothing or pay to do it and likely to push you out of a job?
Grass can be yellow or brown, it is not always green! But it's still grass!