I noticed a definite drop in prices at a gunshow I attended here last weekend, especially compared to the last show in January. There were loads of AR's for sale as well as self defense caliber ammo. I saw a good number of entry level, NIB AR's for $899-$999 and many more in $1,100-$1,400 range. There was also a lot of revolver, 9mm, .40 & .45 caliber pistol ammo and 5.56/223 and 7.62x39 caliber rifle ammunition available. I have plenty already so I wasn't really looking to buy but I saw several venders selling 5.56 and 7.62x39 Wolf and Tula for $8 a box for 10 boxes or less, 10-25 boxes was $7 a box and over 25 boxes was $6 per. There was less .22 LR for sale than I would have expected and it was more expensive than pre Newtown prices, but it was available. Most of the chain stores are still running low around here but it is getting better and the prices are about what they were before the rush when you do come across it.
OTOH, I haven't seen an AR, AK or "black" rifle of any sort at the local big box retailers in month's aside from a few smaller LGS that are still selling at a fairly good mark-up over the pre holiday prices. That may be the reason there are still some "assault" style rifles in the mom & pop stores... nobody is willing to pay the premium for them anymore.
"... Americans... we want a safe home, to keep the money we make and shoot bad guys." -- Denny Crane