Bethesda believes that Fallout: New Vegas will continue to sell for a long time thanks to a two-pronged attack of PR and DLC.
Euro marketing and PR director Sarah Seaby cited Fallout 3 as a standard when talking about New Vegas sales.
"We believe that through a combination of DLC, our strong marketing and PR and by managing our lifecycle properly, that we'll see a long burn of sales in a similar way to Fallout 3," she told MCV.
Last month Xbox 360 exclusive New Vegas DLC was announced.
Although we've been hearing more about New Vegas patches than anything else recently.