Really?
I mean I do hear the NCR soldiers say "Almost makes me wish for a nucle"¤)U=%/()=()y=rjf" /rage, a lot but I haven't heard two sound-alikes as of yet.
But maybe that's just me not being perceptive enough.

i hate the nuclear winter quip....i kill anyone who says it out of spite now.....NCR hates me alot.
also im just picky on voices.
Idea though set up booths in malls and have tag lines on monitor screens and get random people to say the phrase, dispense a coupon for the game (only 1 coupon allowed per purchase) to pay for their service and splice together a ton of random sayings in the game.....or not whatever.