Parky, harsh, but possibly a little bit of truth in there too.
I can navigate, all be it basically, but I have no confidence in my skills. I bought the basic GPS as a back up, grid ref if I get lost etc. I have now realised that a mapping GPS will, at a glance, tell me if I'm on the right route, as well as getting me out of the shit if I get lost.
I would have thought all the questions were fairly obvious though. If I'm going to invest the best part of 400 quid on a GPS, I want to make sure I get the right thing, but I don't, if possible, want to fork out an extra £100 plus on 25k mapping to go with it, if the supplied 50k will suite my needs.
Whether I'm an idiot or not, doesn't matter. I feel that having the right GPS will make my days on the hill more enjoyable and safer.
The only way I'm going to have half a chance of getting the right unit is to ask questions, then I get the right one, I learn how to use it, again, by asking questions, and I can just get out and enjoy it!!
I would have though, you being someone with superior intellect, this would have been quite simple to understand