Hmmmmm
Need Or Want.. The answer is quite simple for me.. It's want. Aside from using my cameras for product shots of items I sell here and on ebay, I do not make any money using my cameras. That pretty much rules out Need, for me.
Do I Want a K5? Yes, I do. Will I buy one? Probably. When? After the frenzy is over, the kinks have been discovered and worked out, and they are readily available (oh, and when I have the money to pay for it
).
We can take your need vs want question a little further. Before I bought my K10d, I had a Panasonic FZ20 that I was quite happy with. Did everything I Needed it to do and even a few things I Wanted it to do. What I gained by switching to dSLR is the privilege of paying the Pentax Tax for a bag full of lenses to get me the same focal range I had with the FZ20. I don't regret that but I sure as hell didn't NEED it.
Do I Need all those expensive lenses? No. When I was using a Film SLR, I had (still have) an Olympus OM4 with a 55mm f1:1.2, a 50mm f1:1.4, a 100mm f4, a 28-70 zoom, and a 70-210 zoom. They got me everything I Needed and I even got some exercise while using them. That is, if I wasn't close enough for the lens I had with me, and I could get closer by taking a few extra steps, viola! Free Zoom!
Nope. Don't really Need any of it but I Do Want it