Sure, the tweaks and multitude of new weapons are welcome additions, but they were entirely necessary to keep fans interested in this franchise -- and perhaps Obsidian hasn't gone far enough with the changes. There are no vehicles in New Vegas (and apparently no fast travel system at all), and players are still going to spend a lot of time inside Pip-Boy menus and the VATS system. Still, if you're yearning for more "Fallout 3," New Vegas is shaping up to be a fun, familiar journey back to your favorite post-nuke world.
http://www.joystiq.com/2010/05/04/fallout-new-vegas-preview/
Read it, and, should the situation warrant, weep.