Well, the ultimate deciding factor was that the dealer came down in price and offered better financing terms for the P5.0 - and I liked the Maxi Stitches that the QE4.2 did not have. The P5.0 also has a large color display and intuitive touch display, whereas the QE4.2 had more "buttons" that required me to page down or navigate through. I kept getting confused on which direction to touch on the wheel (on the QE4.2) to get to where I needed to be. With th P5.0 I was there with one or two clicks of the stylus (or my finger). I loved the way everything is layed out in folders - much like the way I organized my office files! We just clicked, back when I first played with her. So when the dealer came down another $250 and was willing to give me 48 months interest free financing, I took the plunge!