Adrianmsmith If you take the original version of the Evo (Dave had the first prototype, pre-production one made from the parts bin!) then compared it to the proposed newer version, then ask yourself if the new bits actually change anything to the shot. You can then put a value on the new machine. I used to like staying up to date but am not so fussed these days. For me, the facility to kill a shot is meaningless. I am not a temperature tweaker either!
Buying second hand saves you a tidy sum, but if the pull of a brand new machine is your hearts desire, then you know what to do! Why not declare part of your post code and see if there are any owners near you, then you can have a play. I doubt if someone made you two shots, one on the old EVo and one on the new, you could tell them apart.
I have one of the first production machines. I often think am I missing out by not getting the newest itinerant, then I think well, I would probably not use the bells and whistles anyway