Well, I don't ever really fret over dropping my guns. They are meant to be used, even if they are expensive. replacement parts aren't THAT hard to find, its not like I am using WA M4s here!
As far as JG goes, they are great guns for the price range, but really aren't anything interesting compared to a number of other manufacturers. They are awesome entry level guns that let you compete right off the bat, but they are limited in upgrades. I would rather buy a TM AK and upgrade it with some aftermarket parts rather than buy a JG and upgrade it to be like the TM. Thats just my take on it.