I mentioned my brother in this episode (Patrick, in the comments) and how he tried to go for Vegas. He ran into a chorus line of Deathclaws. We both agreed this was stupid. It looks ridiculous to see them standing shoulder-to-shoulder like that. And if you’re so adamant that it should be impossible to go that way, why not just build a wall?
Oddly enough, I stuck to the rails. I resented them, but I was afraid I’d miss something.