No doubt there's some gouging still going on. I've seen people selling old yellow box Norinco 5.56 ammo at $15-19 a box/20. That stuff hasn't been imported since '94 and was going for $1.99 prior to the ban on Chinese ammo.
In the small , independent gunshops though , I think product/cash flow might have a lot to do with it. If a shop normally sells 500 boxes a week at $2-3 profit per box , and now they have no or very little ammo to sell , they have to make money to pay the bills any way they can.
Add that to the overall bad shape of the economy , , and well , ,