FlyJSH,

I believe your analysis to be pretty flawed if based solely on money. There is a massive difference in what one has to look forward to at Delta in subsequent years, when compared to Colgan. The relationship of slightly more than double the money is valid for first year only then is substantially blown out of the water.

However, when you introduce other factors such as age, favorable basing, scheduling, etc., I see your point. It may not make sense for senior regional pilots to leave.