imo, and through expirence, cocker arent "complicated". Thats just for people who are too impatient, or what have you, to take the time to sit down and learn about the gun. Im a reatard and i can do anything to my cocker...im gonna install the eblade myself as soon as it gets hear (ordered last night

).
Complicated interanls...lol, whoever told you that should be smacked...the only things that are inside the gun are the valve, hammer, bolt, and the springs that accompany them.
As for pirce, you can get a used 03 for cheap.
As for getting electro for the price...maybe a bko. They are good guns, but from what ive been told, the cocker is a better choice, especially after you get an eblade.
And as for the price of an eblade, if you may be concidering it, should drop pretty soon, due to the eblade2.
Cockers have great air efficency, they are accurate...its no all cocker pride, it has been proven that the only marker more accurate is a trix. You can also use balls that are mushy that you pick up off the ground, cause the cocker is closed bolt...this way the ball isnt being smacked by air and a bolt, its just a happy poof of air that says "go this waaaaaaaaaaaaaaaaaaayyy" and such.
All in all, i have never had a problem with my cocker...it required basic upkeep like everyother marker and it just takes a lil bit of time to understand whats going on.
Hope this helps...please correct me if ive said ne thing wrong...i know for sure im not perfect.