IMVHO the larger elephant in the room is bitcoin's deflationary nature.
The bitcoin faq regarding deflation basically says "we don't know what's going to happen", and regarding volatility the current solution for merchants to cope with volatility appears to be "convert everything to fiat ASAP".
Yes, I was basically saying your definition was wrong: that's not what the phrase "elephant in the room" actually means. It means something that isn't discussed.