Personally I only haven't gone to P5 ONLY because other issues have rendered me Flat Broke for a while. But as soon as I can I'll be upgrading. Sure there will be issue and a new learning curve, but look how every one has, rather Had, blasted every previous new product but then it became the main-stay (P4, Vicky/Mike, and everything else before). It's all part of evolution and learning to handle something new and the problems/marvels that something new brings with it. That's what makes life in itself an adventure.....