PTW is for people with money and no time (or patience).
AEG is for people with more time than money.
Honestly my PTW sucked dick, because I didn't have money to keep it in good shape. But it still outshot 90% of the AEGs I worked on, and I know this because I have a 260 foot range on which I test all the guns that come through. The ones that shoot equal to or better than my PTW are guns with R-hop and Prom barrels.
The ONLY thing I miss from PTWs is the trigger pull, which I'm working on replicating in AEGs now.