I don't ever recall seeing these one sale (not that I was looking) but this a really awesome card, auto or no. The green background may throw you a bit because at first it looks like a relic from the original set of gunsmoke, but Daddy D sent over the Jeff Niemann (non-auto) from this set and I really dug it.
The card is on fairly hefty stock, so it feels like a card should. The auto is on card, and is really well incorporated into the overall design. The sepia-toned photo is a little on the small side, but it a) fits in with the overall feel of the design and the card and b) the pared-down size is a legitimate gesture towards "real" tobacco cards.
Like any other player collector, I wouldn't mind acquiring some of the higher end autos of the player I collect, but frankly I find a lot of them to be garish products whose prices reflect contrived scarcity. When I can get a card like this for MUCH cheaper and still have money left over to eat, my choice is pretty much made for me.
Have a good one and goodnight Pumpsie Green, wherever you are!