Hold onto the ARs, I sold four of them for over six grand and I didn't pay twenty-four hundred for all of them (and I still have two). The lull in sales is coming. Wait till 2016, and then after (especially if Hillary gets it). The money you will get will be insane. I used the proceeds from my sales to invest in some great equipment that now lets me do some interesting things, things so interesting I won't even post my projects online (all legal).
I've got enough guns for my own personal use. Now it's about picking up great deals that will sell for bookoo money in two to six years. There are lots of people who wish for $2,400, they would have profited $3,600. Gold is fine, but guns hold their value better (seriously I sold a Gen 2 Glock 22 for seven hundred dollars with two service mags, I paid $300 for it).
One day I hope to build my own Shansei style C96 in .45 ACP with a ten round capacity, just because I can.