What is the mission density? In other words, are there multiple missions
available every week or does one (that fits your profile) pop up every
month
or so?


Lots. Every week I get an email with atleast 50 or so missions. But there
are thousands of pilots on the list so most of them get filled.

I wish I could do more, heck I'd retire and do nothing but if I could afford
it. I wish there was an organization that would pay for the fuel of Angel
Flights. I'd probably do one a week if that was the case. Right now I can
only afford to do about one a month.