While fun to read, these compilation of gosh-wow things should be read with a jaundiced eye -- or at least a skeptical one.
Oftentimes the stories are embellished and expanded.
And many times, the strange incidents are passed around from book to book, cited by one guy from a previous fellow's book, while an original source may be indetectable!
But hey, they're fun to read. I think a big part of their popularity lies in their ability to kind of broaden somebody's conceptual horizons. That's probably why I have several hundred books on souch outre topics!