That are driven by a rechargable Battery (12v upto 24v now) are just freaking awesome.

I used one recently. Yes, awesome.

Looked at getting one. Cheaper than buying a HUGE COMPRESSOR and wiring for it. Overall since I don't do it for a living, recharable electric is the way to go.

I can then buy a smaller compressor for trivial jobs (cleaning out computers, filling tires, etc) and HVLP or normal spraying.