SGIAAA airless and Airmix are not "better" wood finishers than the other top, low overspray spray guns we carry - (it may be better than cheap guns you purchase at your do it yourself store, but not the spray guns here). Many intuitively think you get a finer finish due to a much larger price tag. A salesmen might have told you this, but this is NOT true. Instead, what you DO GET for your money is1) a hi powered pump for fast fluid extraction - which therefore can be used with a very small compressor because you use an extra pump for fluid extraction and 2) a spray gun system built for speed and a full fan pattern.
Therefore, AAA and Airmix are geared toward small or large production facilities who desire a serious hi-production finishing system. If you are such a person take a look at our "Best in the World" CAT Cougar and Bobcat Systems.