King's Dark Tower series: reader reluctance; reader betrayal

I'm currently four books into Stephen King's seven book Dark Tower series, completed this September. I'd read these first four previously, but had been holding off on the most recent three, each released six months after the other. My re-read of the first four is complete, and it's prompted a couple of thoughts about reading.

( I'm oddly reluctant to keep reading. )

But how about you? If you had the long, long-awaited conclusion of a sequence before you, one you'd given up hoping for—would you jump right in, or would you hold back, a little fearful of what you might find? Have you already experienced this situation, and with what?

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( Also, I feel rather betrayed by King's revision of the first Dark Tower book. )

I might not be able to fully articulate or justify this feeling of betrayal, but I feel it keenly all the same. As readers, writers, critics, what do you think? Am I overreacting, discounting the author's interest? Is this just not a question most readers have occasion to confront? If you were Stephen King, would you have done it?