Some people stay because they honestly believe it's the true religion. There are many people whose lives before becoming a Witness were not all that pretty but when they became Witnesses their lives improved, in their view anyway. That is not a small thing for many people.
I don't think the Witness religion is the paradise they like to advertise themselves as but neither do I think its the total dump many on this board like to characterize it as either.
Just my opinion. And no, I'm no Watchtower plant. LOL
That is true. Many are in it because the believe that it's 'the Truth™'. But the reason that most of them continue to believe it's true is because they 'obediently' refuse to look at any proof against it. Everything they hear about it reinforces their believe that it's 'the Truth™' because their only source of input is internal.