These are what i think those reasons are:
1) you can get predrilled extrusions.
2) the tolerances for a mag is much higher than a cocker
Yes, I forgot that the newer batteries that were released had upgraded specs. Anyway, 800mAh packs still give you alot of charge for an emag, especially
Well for $1k I'd expect a complete and usable product. Yes there are other things that you can get of quality make for less. For example your 1911 for