For me, the 5600 is a great device. I love the look and feel of it even before I press the "On" button and start tinkering with it. However I realised within a few weeks that I really should have gone with my gut feeling and bought the "Big Daddy" C860 in the first place. So mine should be here any day now (fingers crossed that USPS and Customs don't spoil the party....) My brother in law has agreed to buy my 5600 which is excellent because I can keep an eye on it
I bought my Z to replace my Psion series 5, which was a tool/toy first and a PIM second. Now with the Zaurus, after a bit (well, a lot) of fiddling I have something which works very well as a PIM, and is the best toy I've seen that fits in the pocket. But I also feel it's the fiddling that's made it fun. It's my device now, in a way that a Palm or Ipaq would probably never be.
I don't see much elitism here, but I'll concede that I have succumbed to the odd smug grin when firing up a bash shell on the train. Counter that with the times I have banged my head against the wall trying to get apps to work.
For me the whole point of the device is that the nuts and bolts of the device are pretty much laid bare for anyone to play with. If I had wanted a PIM to give to my Mum, I would have bought her a Palm, because that's the sort of person that device is geared towards, and it does that job fantastically well. As it is, I wanted a device with a lot of hidden potential even if it has a steep learning curve. Even if I have no idea what I'm doing yet, the capability to do things like compile applications, run X, write scripts and all sort of other things is extremely compelling, and I guess that's what drives the type of User that that the Zaurus attracts.