For me, Tor continuing their free ebooks is just another pointed reminder that they have thus yet refused to release some of their most popular series (Robert Jordan's Wheel of Time) into ebook format. Wizards of the Coast publishing continues much of the same behavior with R.A. Salvatore's Drizzt Series. Were these series to become available today I would buy the entire series immediately as they are some of my most treasured reading. It's EXCEEDINGLY rare for me to buy a dead tree edition of a book these days so a publisher's unwillingness to ignore their customer base and hold so much of their inventory back from the electronic media like this is enough for me to pretty much boycott their brand name until they capitulate.
That's just my thing.