In investment space too, a similar phenomenon is observed! When investors are investing in a new company either through IPO or secondary market, what one should notice is they look out for "who else" has invested in the scrip. Are the so called "investment gurus" a part of the investment crowd for that scrip.....this gives some "solace" and "charm factor" and "smiles" towards the particular scrip in discussion.
So, where do you fall? The first mover, or the observer who makes the later move.