So in browsing for an AK, I've found Echo1 has a large selection of AK's and other Russian weapons in there Red Star line of guns. From what I have heard, E1 rebrands CYMA's, JG's, and other Chinese guns. Now, E1 brands cost quite a bit more than the OEM versions of the guns. Is there any reason to buy an E1 over the OEM gun? Does E1 do anything more than adding their Red Star trades and including a crappy battery and charger?