I find it funny how every time that we have these price surges, all bunch of threads open ups with people asking why are we going up? Don't people expect that we will go up as time passes and we are making progress? I don't get it sometimes! Maybe we are just growing people?!
You do have a point, however, people are curious to find out what is causing the price to go up. The most used answer is manipulation, but as you also said, it can also be the natural growth of Bitcoin.