Dust removal is certainly desirable; but the Nikon D80 doesn't have it. I rationalised the purchase despite that omission on the basis that by using a single lens which would cover 99.5% of my needs - the 18-200 - I would rarely if ever need to have the lens of the camera and hence would have little or no risk of dust in the body.
Still wish the Nikon were a little lighter to lug around, though, especially with the 18-200 zoom attached...