You are just right, bitcoin is sometimes rising, sometimes decreasing... but recovering again. I hope more people use it over time, so the price can find stability.
Yeah if more people are going to buy bitcoins and going to keep on using bitcoin for sure the price of bitcoin is going to increase. And of course you are not going to do something but you are just going to hold it until the price is going to reach your desired price. But you are not helping the ecosystem of bitcoin if you are not going to use any single bitcoin.