I would TOTALLY do this if I could. One of the big problems with me trying to sell stuff in Artist Alley is always that I can't, you know, actually stay in Artist Alley all weekend. There's only so many ways I can say "and then I sat at the table some more" before it gets really boring.
...and then there's the whole "not actually talking to other human beings" thing. I'd gladly adopt any method of doing ANYTHING that promises less human interaction.
That could do nothing but improve my sales, I promise you.