you can sell a little to cover your expenses. there is absolutely no point in cashing out from an appreciating asset into an asset on the brink of collapse.
glad that you are amuzed. at least that you can do since it's free
I don't understand many posters' (like EM) fixation on selling all of their bitcoins. Just like you don't have to invest $100,000 (you can start with 50 bucks!), you don't have to sell out all your bitcoins in order to benefit.
I think it is generally agreed that if you believe in the long term prospects of bitcoin, it is wise to follow a disciplined divestment strategy such as Risto's SSS plan (https://bitcointalksearch.org/topic/sss-a-sane-and-simple-bitcoin-savings-plan-345065). This way you can both extract money to enjoy your life as the price rises, while mathematically ensuring that you retain a sufficient amount of bitcoins should bitcoin become a major global currency.
Even those who purchased this summer have already re-couped more than their initial cash investments following this simple plan (while still retaining most of their coins). Now they can more-easily emotionally detach from the price swings and enjoy the ride.