There have been several posts discussing airbrushes but not much discussion on air compressors. The few specific models have been given and those seem expensive. The things mentioned as desirable for a compressor are adjustable pressure and a moisture trap.
I'm looking for a compressor just for airbrush work (paining all my track for now), and I'd prefer an inexpensive one. The Harbor Freight web site has a 1/5 Horsepower, 58 PSI Airbrush Compressor and Airbrush Kit with an adjustable pressure regulator (w/gauge) with moisture trap for $90.00. It does not have a tank. I may or may not used the airbrush in the kit (looking at a Paasche). For that price, it looks like a good deal for the compressor.
Is this compressor a good value, or would I be better off getting a different model with better specs? Does a tank help that much? Your thoughts on this would be appreciated.