Have you heard about this new offering from Amazon. I have to agree with Mark here and just like KDP Select limits Indies options, so does this program. I like that KDP Select lets you opt out after a certain amount of time. I used it for one of my ebooks and opted out when I allowed to by the program. I think most authors do this. I don’t want to sell my book exclusively to anyone.
I have not gone into the details of this subscription service, but since it requires you to be in KDP Select to be a part of it, I’d read the fine print before I jumped into that boat as an author. As a reader, I don’t read on my nook enough to subscribe to any ebook subscription service, but that’s just me.
CKBooks Publishing 
I’m in KDP because I’ve never sold a single book on any platform other than Amazon–and I was listed on B&N for a year. I could never get Smashwords formatting to work legibly, and Kobo refused to recognize my credit union as a legitimate bank.
Hey Misha – you gotta use what works. I’m glad Amazon works for you!. Amazon itself is a must for any author, I just think KDP program has to used judiciously.
Good luck to you!
Christine
p.s. If you want to chat about formatting for smashwords, I’d be happy to. I’ve done it many times.