I haven't been to any gun shows around here mainly for this reason, not going to pay stupid prices they are suppose to be a place for deals. All the gun shops and places that carry ammo around here are fairly priced still what 100 packs of CCI 22lr I've found have been 9-14$.
I was at a Walmart in west milwaukee wed for its grand opening (I've gotta be on site In case of any issues) I checked out their ammo case, it was pretty much empty 400rounds of Winchester 22 a few boxes of 380 and a few boxes of rifle shells