I can say from my personal experience that this book inspired me to come to the US first and move to Silicon Valley later. Everyone's perception is different. I read it 10 years ago when Coelho was not that popular and while reading it I was not thinking about what other people thought about Coelho, I was thinking about what was written and it related to me deeply.

So I think you might be right that he became too populat, but I disagree that "nothing to see here", I'm sure a lot of people will find inspiration just like I did.