Two years ago I took in 75 pounds of sheds...mostly whitetailed deer and mule deer 4 & 5 pointers (120-140 inch WT/140-170 inch mulie mostly 2.5-3.5 year olds) and a few moose anlters to an antler buyer. Grade was evenly split between hard brown (this years) and hard white (last years sheds) and I got $600 for them. I figured it paid my gas for those days I went looking.
However anything over 75 inches and typical or over 85 inches non typical whitetail will command a premium and larger sheds over 100 inches will be worth considerably more than the $12 per pound for hard brown over 1 1/2 pounds weight per antler. Elk shed usually sell for $10-12/lb if they're 5 point or better otherwise the grade drops to craft. Moose fresh hard brown @ $10/lb avg.
Most sheds ultimately end as dog chews and Asians buy the most tonnage. So it's easy to see that deer,elk and moose antlers are worth 5x the price of number 1 copper and 8x the price of yellow brass. Cutoffs are highly controlled and you must have a tag and permit to sell to an antler buyer who is able to buy, possess and sell cutoffs and not all are.
This is a legitaimate economic activity and can be lucrative although for most it's more of a hobby or pastime. The market for shed antlers is critically imortant in my opinion to conservation and can be a viable economic activity for those of us who are able to value and understand how wildlife can be part of strengthening and diversifying our country's economy when other resources seem to be losing value in a changing global economy.