I would say, let the price drop some more, so new people can step on board without paying 600 / 1200 dollars for 1 coin.
There is no reason to believe it is better to buy bitcoins at $1 than it is to buy them at $1000. If the price doubles in a year, then you will make the same amount in either case. There is also no reason to believe that a price at $1 is more likely to double than a price at $1000. It's all relative.