I say play with some ideas for new members. Varying rates is an interesting thought. Maybe $10 get's you all but late war, which costs $15. For all of us no change what so ever. For new players, they have options. That get's them all but one of the P47s, most of the Spits, Typhoon not Tempest, etc.
I don't know that it works but maybe it is something Aces High should play with. Free get's them all early war unlimited, I like it. They get hooked on the Zero then after a while decide $15/mo isn't so bad.
Maybe Skuzzy et al can reach out to the past 2-weekers since January 2011 and throw them this bone. I am guessing the die hard Aces High officianado may not like having rif raf but strong numbers keeps our little hidden universe strong. Something to toy with.
Boo