Why do people buy into Tolle?

Same Xain, different day. Instead of asking a bunch of questions, try writing your own critique. Take quotes from wherever you want, then quote someone you think is accurate and a respected source. Like this thing about psychology says we are “two”, is that right? Where did you get that? Describe why you think the respected source is accurate. You can use personal experience, but stick to standards of psychology and science as much as possible.
Im trying my best here. Rather than just accept the video I couldn’t help but figure how he knew any of this was true. Before I would just accept it as fact and that it but now that doesn’t fly as much.

From what I can gather the entire book seems to be based on his personal experience, though much of it sounds similar to what Buddhism said (having read up on it). If that’s all then I don’t see as much of a reason to buy it as before. I’m sure there are plenty of happy people out there who don’t have to give up thinking.