I see by their weekly ad that Hobby Lobby has all airbrushes and compressors on sale, one third off. I don't know how their prices compare to 'net prices but one third off and no shipping might make that airbrush you've been looking for a bit more affordable.

Remember Hobby Lobby stores are closed on Sundays, good for them. This sale runs Monday June 9th, through Saturday, June 14th.