the debate can never be resolved. it's merely subjective. but i wouldn't say most people have them so that's why most companies make them. i think it's the other way around; most companies make them, and that's why most people have them. i think if all companies offered both options, many more kiters would opt for multi-pump systems.
when one pump first came out, everyone was like 'cool!'. but now that we know the pros and cons, i think there's a different attitude. personally, i won't buy another kite with one pump, and so that limits the brands i can consider.
I still think it is only a minority that dont want one-pump.
And of course these will "fight" the hardest for multipump, so will appear as a BIG group in a thread like this.
As I might have said before - I have not really met anyone around who dont want it, so a very small number.
But I've met many who deliberately has been pissed because a certain kite they fell in love with did NOT have onepump - so they chose another kite/brand because of this
So a deal breaker the other way around too, for some
For many it is more than just "nice to have", onepump
A bit off the topic though - as I would just state what the balance seems to be between onepump and multipump demands.
As the real topic issue is "which kites dont use one-pump ?" - and should be adressed so it is possible to choose these kites