I have a hard time selling them. It took me about a month to decide if I was selling my M24 and MP5 and now that I've sold them, I don't think I'll ever sell any other AEGs or GBBs of mine.
I don't see the need in getting a 2500$ M4 such as the Systema though I would get a 1200$ VFC HK416 mostly since I saw MrJon's collection. That guy takes amazing photos making you want guns even more.
Usually when you spend alot and quickly you might end up regretting but it seems that in airsoft, regretting a pricey AEG or GBB is impossible.
WE AIN'T DEAD