Not exactly the deal of the year. And not very confidence-inspiring. But, hey, the shipping is free! lol
Not really unusual, though. The Quincy offers a 2 year limited warranty. If you buy their startup kit, they extend the warranty on the pump to 5 years limited.
I think the issue here is that they want to be sure you start it up with synthetic compressor oil and you'd have to buy the oil/filters anyway.
So you're paying $400 for an extra 3 years warranty on the pump, the fact that it's made in the U.S., and perhaps a somewhat lower average maintenence cost (though no data is available to prove this.)
Again, my point is that for $1300, I rather blast with the IR compressor and a refrigerated air dryer than the Quincy and a $20 water trap.
If money is no object, then by all means, go nuts.