Home Depot has the Ridgid 6 gallon pancake air compressor on sale right now for $99.99. Free store pickup, and looks like shipping it not available.
Out of 646 reviews it has a 4.6 out of 5, which is pretty great.
This might not be the lowest price for this compressor, but it is $30 off the regular price of $129.99.
It also comes with a 3-year limited warranty, which I think is more than similar style compressors.