I would discuss the fact that "if" you happen to draw an antelope tag, for the most part, you will be assigned to a ranch. Depending on your assignment and what other plans the rancher may have in the works (like other hunters paying top dollar on guided hunts), or the number of animals on his place your outcome may be different than you expect. I know NM is one of "the" places for truly big antelope, just something to be aware of.
One of my employees drew a tag in the southern part of the state and when he showed up for the hunt the rancher told him if he sees a legal antelope he'd better shoot it. Due to the drought he had no water on his place and hadn't seen any antelope for a while. He got lucky on the last day, and shot a small buck just over is ears that was with another doe and those were the only 2 antelop he saw on 20,000+ acres in 3 days.
On the + side it truly is a state where luck of the draw comes into play. When looking at draw odds last year I notice a NR drew a Big Horn Sheep on his 2nd choice! Maybe it was a typo, but with the system we have in place, it is possible. Another plus is the opportunity for youth hunts and mobility impaired hunts. We really give the kids and mobility impaired a decent chance with a lot of the hunts going 100% draw.