I have considered an OBA system, but given the low cost of this system, $200 before discount. The ability to air up quickly is a great plus. Also the ability to use it for power tools would be an advantage. I can get a 10lb system refilled for $20. As I don't wheel that often I can leave this at home and not carry it with me all the time. Ideally I would put a constant duty OBA system on, but this is more efficient than an inexpensive compressor setup.