I have owned my VW 60 since 07 or so. Your costs for a lamp are right on the low end but about $150 high on the $400 - check AVS store, this site.
My Sony has far more than 3000 hours on it and still works as well as when it was new. Some have said that a lot of the Sony projectors that came after it were not as good. I don't know if that's true. I only know that I run it night and day, probably have 9000 plus hours on it and I am still very satisfied with the quality of the image, (color accuracy, brightness, blacks), and the other factors people talk about on this site. Of course I have never had another projector to compare it to, so take what I state in that sense.
I doubt you can go wrong with that Sony at that price, as long as it is still working properly. It is a reliable and capable machine. Remember, though, it isn't a 3D unit. If you simply have to have 3D, there are other choices that might be better.