Much of it may be where in WY, my experience, not nearly as much as others, with 5 seasons done, is all north/central WY:
Area 21: We hunted twice on private, was AWESOME, if you wanted on the ranch you never had to leave the truck, or you could spot and stalk from the truck, or walk a bit and spot and stalk further from ranch roads. Until you got out of the truck the antelope just looked at you. Full disclosure this was on guided hunts on a very large leased ranch.
Other areas in this general area:
- easy to draw, no points needed for non-residents. This was brutal. Opening week was a total waste. After having the public land pretty much to myself during archery and getting multiple stalks each time out, day before firearms started, POOF no more antelope, but trucks, tents and people EVERYWHERE. Second week still stunk, most people gone, but antelope not back yet. Weeks 3 and 4 where type 1 buck tags weren't good anymore, well we had fun, antelope came back and we filled all our doe tags. Took some walking, you could spot from the truck, but anything close to road ran. If they were 1/2 mile out or so, you could glass hide the truck and move in. We had best luck hiking over ridges to glass where you couldn't see form a truck.
- hard to draw (6+points non-resident, residents about 25% chance). WE HAD A BLAST. Was like being bakc on private, lots of antelope, decent to great bucks, if you were not picky you could fill a buck tag fairly easily. We held out for "good, not great" bucks and filled 2 buck tags in 3 trips down there.
Your mileage may vary, but for us, easy to draw units we get leftover doe tags and wait til end of the season. We just LOVE hunting these things, it's just flat out FUN.