I will say they don't make that much ! I checked the price on upgrade kit from Trumat and my friend's price in Taiwan. Not much difference ! plus he shipped from Canada to Canada.
You can always buy 2nd hand gun ! some are pretty nice. check your local.
I know it sounds quite expensive when u purchase ur AEG. However, with all those sh@ts dealers have to go though. Ain't that bad. The market is not big enough.
( but as a consumer I would like to see lower price ! 8) after all I am a consumer, a cheap one too )