i know, those are actually realistic and very down-to-earth reasons to chose a system. they are not the only relevant reasons though (there are so many more); but my point was that, sometimes, you really need something to just make them stop in their tracks for a moment, enough for you to mind your own business, enough to break their rythm, so to speak. most people asking questions like "why the hell would anybody buy a pencraps -- oh, sorry, penfax" will expect a "fight", an answer like the above will leave them lost for a moment (or several), computing a suitable way to continue
. for the smarter ones, computing will take even longer ("what the hell does he mean by "does it make a difference?", is he that bloody good [note: by this time you are already on your way] it doesn't for him, or is he that bloody stupid he can't see it does", by the time the internal crysis is solved, he has to re-start the discussion (you are already minding your own business), and the initial "hook line" did not work, so now he needs a new one, more computing. you can be miles away, shooting the sunset on a mountain top by the time they realize what hit them :-D