Unless I know for sure the reputation of the manufacturer of the reman/reloaded ammo sold at Gun shows, I give it a pass.
In my opinion it's like playing Russian Roulette, and false economy when you consider what they are charging, and add in what you paid in gas to drive to/from the gun show, admission price (and in some venues, parking). If all you come away with is reloaded ammo, it isn't worth in.
On average, you can find factory (Black Hills, Remington, CCI/Speer, Magtech, Winchester etc) .44 Spl online from well known places like Cabela's, Gander Mountain, The Sportsman's Guide, Bass Pro or online ammo e-tailers, at prices between $35-45 per box of 50.
Take advantage of the ammo search engines (ammoseek.com, gunbot.net, slickguns.com) to sniff out the best prices.
If you play your cards right and take advantage of free shipping promotions or sales or discount codes from places like retailmenot.com, and then stock up... you'll do pretty good.