I think that life is too short to have a bike that's not the "right" bike for the ride.

In order to properly cover my riding options I need a DH bike (Banshee Legend) for the park and shuttling, a long travel 29r (Sworks Enduro) for when I'm pedaling up to DH'ish trails, I just got a Knolly Endorphin as a trail bike and I have an SWorks Epic 26r that is not that useful for most of the stuff that I ride here.

MTBs are always give and take - there is no perfect bike for the ride so the answer is ALWAYS more bikes.  Now I need bike switching stations on the trails!