If you need a helicopter with passenger space, why are you buying one instead of stealing it? I mean, sure, having a helicopter makes getting across the sprawl and avoiding traffic (or getting out to that ship you're robbing) easy, but people forget that you have to store these things someplace! And it is a lot harder to hide a helicopter than it is a van. Either you're at an airport, in which case there's a lot of people seeing you coming and going, or at least sensors tracking your comings and goings, or you're out in the Barrens, and having a helicopter makes people think that you probably have a lot of toys worth nuyen that they can take off your cold, dead corpse. Or, if you seem too dangerous, they may sell that info to whoever is looking for you in return for getting soycaf and stuffers for the next couple weeks.
Personally, I've tried making techomancers, mages, mystic adepts, a face, and a street samurai under the new priority system, and while I was hamstrung in many areas due to the priority system, the amount of nuyen I had wasn't an issue at anything except the lowest priorities.