You're kidding right? While I'm not happy with the paint problems either, there's no question they are an absolute steal for the price. You must consider that I bought the Han 1/4 for $200. I got a piece with paint worthy of a $200 piece.
A paintjob from a good paintmaster can be REALLY expensive. Depending on who you go with, to get a 1/4 scale fully sculpted piece painted can run between $400-$1,000. Let's just say I speak from experience and leave it at that. Of course Han would be less because he is not fully sculpted, but you get the point.
"Perfect paint", as you call it, would require a price tag of $500 or more at an absolute minimum on a 1/4 piece. That is exactly what I would want to see happen, but I'm not so self-absorbed as to believe that it ever would. The market is just not there for it.
Now on the $1,000 Predator maquette or the $1,500 Cinemaquettes, the paint had better damn well be perfect. There is no reason to pay that much and not get a custom paint job.