Is there a way to understand why the value is skyrocketing?
Not likely. Sit back and enjoy the show. Don't sell your coins cheap.
330 is expensive if you bought at 240, but cheap if you look at the potential.
For me the currency price is ok, with a stable rise of 5% each month, till july 2016, slow but steady progress is what we need.
every current price is nothing more than a dot when you are willing to hold your coins for years. the reward by that time for your patience will be huge.