I will probably get New Vegas once I build my own PC, and they release the game of the year edition so I don't pay more for all the DLC, and it will hopefully be patched well.
Also, now that I hear about the steam requirement I couldn't even if I wanted to. I have dial-up at home so my PC cannot be kept up to date and have up to date protections so it is internet free. Once I own my own PC I have ways of getting it to the local coffee shop to use their WiFi
That is how I keep my laptop up to date.
I think it is ridiculous to require steam for the game to work. A lot of people still have dial-up connections. Some cannot afford high speed, and many areas still cannot get high speed (Especially further away from the big cities).