What does the wild wasteland perk in Fallout New Vegas do?

Ohhh I love this Perk. This gives out some incredible little Easter eggs and generally makes the world a lot less serious. For example you can find Aliens like from Mothership Zeta and you can find a skeleton in a fedora hiding in a fridge in the middle of the desert somewhat around a direct bomb strike. It makes the game a lot less serious and lends itself to a slightly funnier experience. I'd suggest it highly for maybe a second playthrough.

It does remove some things though. No more Gauss Rifle because you can get the Alien Blaster for example.