see my earlier post, the first reply in this piece...
no video rotation, no real radio rotation, and moving 21,000? that's like selling 21,000 *indie* (cuz the only real diff b/t indie and major label artists, 5 times outta ten, is the indie guys never get radio or video rotation).
(and I don't think the press ads helped)
All I can figure is that the appearance on Unplugged and the (relatively) steady touring + word of mouth did it.