A few times per year, I look over my bookcase and if there are titles I am interested in replacing with eBooks, I start poking around Amazon (I have a Kindle.)
Sometimes, I am reminded of books I am searching for, or authors I want more of - and if they have out-of-print titles, I'll take a stab.
I've posted before about my tardy discovery and enjoyment of Fred Saberhagen's work. Over the past few years I have been collecting his Berserker tales, Empire of the East, The First Swords trilogy and The Lost Swords series. I have two books in the Lost Swords series to find. Sometime during the year (summer, maybe) I happened upon Kindle editions of the first four. As luck and timing would have it, the Swords books have been (re-)released in eFormat over the course of this year. The covers are primitive, even for eBooks, so I was mildly suspicious. But, they have all been released now (except, I believe, An Armory of Swords, which was an anthology.) The eBooks are being created and published by Saberhagen's literary estate, JSS Literary Productions (which, I think is essentially his wife.)
Too bad there is a disconnect as JSS L. P. also run the Berserker website - the official Saberhagen site, and I see no news announcements about the eBooks. So, I'm spreading the word for the curious, or fans, or fans who have lost their original print Saberhagen books.
I will still find hard copies of my missing two novels, but it's nice to know I can at least fall back to the eBooks if I really am desperate.