That´s why flying anything below 100 seats is not optimal - our current top 1 has a nice pocket-planes fleet that in some years will bring so much fun as maintenance cost increase...
I don't worry about maintenance costs, maybe I don't get the mechanics of R1 (too long for my taste), but in 30 year worlds I never felt any problems with that.
I always get a nice fleet of profitable 50-100 seat planes, and I even started liking some smaller like Do328 and some others. And things like ATR-72 sure are profitable, trust me. At the internal market where I don't have to care for gate numbers because terminals are so cheap (except for 1-3 airports where I might get to occupying 200 gates), using small planes is sweet and simple. Why would I avoid them when I need more planes and can't get enough of bigger ones, and 2 of them make the same money as 1 big? And even if I have enough of big planes, I get used to the small-route 1 small plane scheme, it makes things more simple than 1 big divided to 2 routes. And you also get the big frequency rep plus, usually not very important but I just like it.
@TNT I don't know about page loading for too long when you have more planes, I felt that only when I got to over 10,000, otherwise I had problems when everybody else had problems because of server maintenance and whatnot.
And all of you trophied guys and those on the way to have a bunch, cut the crap and stop the pissing contest, what are you trying to do?
Don't turn against each other when there are always a few noobs who don't get the game and get pissed off for not being able to handle things and getting annoyed instead of trying to ask and learn, and even worse, those seasoned anti-spamming lobbyists who are still a mystery to me, but they just don't quit and always have something to nag about. Show those guys your trophies and not others who have them.