Yeah, I got the 50mm even though it's a full body lens and my camera is a crop body because it was the same price as other DX lenses and not 2-3x more expensive like the other FX equivalents. Plus I know FX lenses are a bit higher quality too. So I thought that was well worth it especially if I upgrade to a full frame one day.
I might get a zoom lens in the future, but that's not high up on my priority list right now based on what I'm interested in shooting.
My only complaint about the camera is that it doesn't support a shutter release cord. I wanted to try out some astrophotography some time, so it looks like I just have to be extra steady when I push the button.