There's a reason I don't play FSX and that's because I don't want to have to pay $40+ for every plane, ever airport, every paint scheme, every map, every vehicle, every era, every upgrade, every plane variation, every weapon, every radar system, every guide, every video...
If DCS is gonna start slipping into a payware-for-every-little-thing model I can certainly see my interest dropping. Paying ED for super high quality aircraft every few years is just great. Paying 5 different developers for one or two little things every few months... never.
There's already been a thread about how much DCS A-10C has cost people and for many of us it's been over a $1000 including all the peripheral purchases. I'm happy stopping there and not becoming one of the guys who says "I've spent 10,000 on DCS mods"... Especially if most of that money isn't going to ED to make the next DCS game better.