Thanks all, yeah it does sound like a faff really, but I guess it is what it is.
Yes, i did think about not getting the key-less option, but it comes standard on the EX. I wanted the EX for the wife because it has the reversing camera, and also the other few extras.
Saves me fitting the rear camera myself, although I'm not not sure I would have been able to anyway, having read the thread about the Dash cam installation/ECU not letting people fiddle with the electrics (that's another question for a different thread!)
Regardless of whether its worth it or not, I wonder if its possible to get a new key cut, and have the remote re-programmed without the key-less entry? Would have thought so if its like that on the other models without key-less entry.