From what I hear, Warlands was good when it was still under Image. Once it hit DW, it sunk. Fate of the Blade was also relatively popular. Otherwise the other books can slowly fade into the obscurity of 50 cent bins.
I believe (and I could be wrong) The money he spent to buy the rights to everything in the auction, is what's going to DW's debts.
I hope this means they'll be reprinting Darkminds, as well as releasing new material. I don't think anyone is going to hold anything against Dreamwave with a new owner. Also while this might look like the buyer is throwing his money away. I think these properties have potential to spin off into other media like movies and television. Look at Men In Black, which was an obscure comic book that became a blockbuster movie.