Perk system is there to prevent people from upping uber performing planes 100% of the time.
If you weren't here for the F4U-C plague, you wont know how unbalancing ONE plane can be.
Look at it logically. HTC has modeled more than a dozen planes in the game. Only 4 planes , the arado, tempest, ta152 and f4u-c
are perked. You say they are being wasted because they arent being used. Look at it logically. Unperk those planes and then the dozen+ planes htc has modeled would be the ones that would be wasted because they wouldnt get used, as everyone would be flying around in these 4 superplanes. Go into the MA and count how many c202's you see. How many c205's. How many la5's. How many P-51B's. How many ju88's.How many A6M5's?
Then count how many p-51's, la7's and n1ks you see. Get a ratio. You will see MOST players will be found in these last set of planes. Why? Their performance is waaay beyond those of the previous batch.
And thats why there is a perk system. Be in the MA when 1.08 is out. See what will happen when all those who have perkies are trying out the me262 on the first days. THAT is how your perkless MA will be like all the time.
The F4U-C is perked because it was too popular. It was popular because of its guns. Your argument is that you can kill as easily with .50's as you could with the cannons (but you just have to "aim" wasnt that you said?) and that since that is so it shouldnt be perked. Well, you have the F4U-D. Same plane, only that it has 6X.50's. Cant kill in it? AIM then. You nailed the f4u-c's problem with that argument as well, in it you dont need to aim OR ACM. just point and spray. If you do need the f4u-c, then earn the right to fly the supergun plane by getting a measly 8 perks (2 or 3 missions getting 1 or 2 kills in la7 or n1k).
As far as your $15 and not getting to fly the planes you want... tell me why your $15 should allow you to ruin other people also paying $15 a month by flying a plane that greatly outperforms the majority of the planeset? They wouldnt be able to enjoy their planes because you keep shooting them down thanks to your advantages. In time, all people would fly would be your uberplanes 'cause its the only way they have a chance to compete (look at those 202, 205, a6m5,la5 ju88 vs p51, la7,n1k ratios, its already happening with non-perk planes).