Personally I don't believe in OBE's either. I think I've felt the same sensations that are described in OBE's when I WILD because my method often has me floating out of my body into my LD and often begins in my bedroom that looks normal. But because I am lucid, I know it is a dream and not an OBE. I think when some people experience the SP and vibrations, but then end up in a normal dream (instead of a lucid one) where things seem like real life they describe these experiences as OBE's. But that's just my opinion.

Here's an interesting read on the subject...

http://www.lucidity.com/NL32.OBEandLD.html