After the treatment he's both given and received from the general Traveller fan community, I'm not sure he'd want to sell it, either.
Then again, who knows. I can imagine that there are a number of people/companies that would bid on the DGP rights were they to come available on eBay, for the sole purpose of being the ones to be considered the Saviors of the OTU Canon. (Heck, if I won the lottery, it'd be on my top ten things to do, were it possible.
)
But I would imagine that the matter is long dead, as far as Mr Sanger is concerned, anyway. He's made up his mind, and it is unlikely that anything short of a miracle will make him change it.
Assuming that the rights became available, and whoever purchased the rights were to sell them as PDFs through RPGNow, I don't imagine any more than maybe three hundred people would buy them individually. (This is based off of PDF sales figures from postings made at ENWorld.)
Let's assume that each sales for somewhere between $5 and $10 apiece (average of $7.50). After taking out costs, the purchaser would probably make, what, $3.75 or so per unit sold. That's, maybe, $1125 per product.
A quick google search suggests that DGP released about eleven major products, as well as four Journals and twenty-one Digests. Assuming the $1125 per major product given above, that's $12,375 total profit for the eleven products. Assuming that whoever would purchase the rights would release the Journals and Digests as $5 PDFs, we're looking at probably $18,750 profit (assuming $2.50 profit per unit sold at $5). All together, that's $31,125 profit for the entire series.
Sadly, even purchasing the rights at half the minimum Sanger has requested in the past (assuming six digits might have been $100,000) is a losing proposition for the investor.
I can only imagine that the numbers get worse if you look at republishing in print, despite the fact that you get more buyers by going in print, as the production/publishing costs are higher, too.
Of course, a set of DGP Reprints would probably sell very well. I know I'd buy it.
Hasta,
Flynn