The Dura will out cut most HAAS, has a lot of standard features that the HAAS doesn't have, and the control has options the HAAS doesnt have. Nothing wrong with HAAS, the Dura is just built a lot better. I'm just wondering how old your quote is for the Dura's. I was told they discontinued those and are now building a NVX series. That series is more expensive, but box ways.
Parts availability down the road would be equal on those two, BUT CHECK YOUR LOCAL SERVICE. Service makes or breaks it IMO.
We have both HAAS and Dura's BTW.