In the midst of a sudden rally, all of you are suddenly "hopeful" that 2017 will be the year, eh? This is plain speculation and not based on any sound principles. The value of Bitcoin will progressively decrease as it becomes more commercialized-- this is a fact. And it is a fact that will allow Bitcoin to survive. Either way the zenith was reached many years ago and most likely will never reach that level again (unfortunately).
If you want something profitable, why don't you put your money in a technology company? It is inevitable that there will be exponential growth in next nine decades, is it not?