My friends' opinions (translated by me, so, khm, sorry):

Henriette:

I love Wheel of Time except the last eleven books! Yes, I think the magic number is three. See WOT, see HP, see George Martin's books, anything beyond the third book is: meh. I have kids, a husband, a university, a job, so I have very little free time, plus the books (4-14) are just too long and I really don't like soap operas.

I will reread the first trilogy in every year, but I don't care the rest of WOT. I will read the summary of the last book on Wikipedia.

Klaudia:

I will buy AMOL of course (I don't like incomplete series on my shelves) but I think I will stop at book five plus a few chapters of Mat and Rand up to book nine. It just too long (for God's sake, we are talking about 14 long books!)

cseresz:

Book 11 because I don't care about fanfiction, (It's interesting to see that there many better ffs out there than BS's books. I will never read BS's books (I have only read a few chapters and they were abysmal, I will never understood why is he getting all the praises - except the five dollars amazon etc. "reviews" - he is just a butcher.

Oh and I hope we will see the RJ's original stuff (the outline + half-ready chapters + his other WOT writings) in 2015-2016, yep, I talk about a few thousand pages like Tolkien's case.

igorr:

I agree with cseresz on Book 11 but I'm not interested in Rigney's leftover. Don't forget it: he was very, very sick all the time (writing the last book) and I don't wanna read 'first drafts'. Remember, he could accepted only the 97. version of WH's prologue.

So, to sum up, when the original author dies I stop at his last book.

And my opinion:

I also love WOT and the next year will be very long, finally we will know how the story ends, I think after the last book I will stop at book 7-8. And as Klau, I will be adding a few chapters up to book 11-12.