It's about Timing!
"Timing is the most critical aspect of any new business model."
Watch this TED Talk video, it makes the point.
Did you know that YouTube was NOT the first entry into the video streaming market? They just had the best timing.
Bill Gross founded over 100 companies including Ice.com, Cooking.com, SNAP, CitySearch, Shopping.com, NetZero, PetSmart, eToys, HitPad, .TV, Shop.com, MyBiz.com and others.