compressors

Ok, so you may have talked about this befor and if so hope you do not mind revisiting the subject.
Shoebox compressor vs the Omega vs a gas powered compressor.
I was thinking about the shoebox, 600.00 but for twice that I can get an omega, and twice that amount, pick up a good used 4500 psi gas powered compressor.
Those that have purchased the shoebox, do you have any regrets, wish you had gotten the Omega and vise versa.
My set up will be for hunting only.