The day of the Aurora shooting in Colorado I went and purchased 10 P mags for my AR. Thankfully there wasn't really any sort of panic after that shooting, and inventory and price levels pretty much stayed the same.
Since the most recent set of events, all I've purchased is a MOE stock for my 6920. It's something I've been meaning to do for a while, but every time I looked it was always out of stock. I happened to find it on AIM Surplus the other day, and thankfully AIM doesn't believe in price gouging. They also have free shipping on Magpul items in addition to their very fair prices.
I don't plan on buying anything else though until the panic dies down. I refuse to pay the ridiculous prices out there right now.
"Si vis pacem, para bellum" - If you want peace, prepare for war.