OK, got ya.
I need my airbrush to spray acrylics, enamels and laquers without being picky about its diet. The option of owning several airbrushes, each reserved for a different type of paint is not an option for me; they cost too much.
I spend most of my time spraying medium and large areas (usually 1/35 armor models) and for finer camouflage patterns I expect to use paper stencils and masks.
HOWEVER I'm considering learning to shadow and highlight the recesses that normally get highlighted with washes. For this application I will need a very fine line in addition to broad patterns.
Spatter patterns are too rare and specialized to interest me and my old Aztek has a special nozzle for this purpose so never mind the spatter ability.
I want my airbrush to clean reasonably easily and, most of all,
thoroughly. When I look at the design of the Aztek I conclude that the way they made those nozles-it guarantees steady build up of old paint that will eventually render the nozzle useless and force you to buy a new one; maybe as early as you complete the very first model. There is nothing that can be done about this buildup.