That's only 4 years from now. How much faster do you think things are going to be by then? Moore's law means we get more complexity, but more speed isn't really in the cards as long as you're using a Von Neuman architecture.

I suspect this machine I'm using will be fine for a decade or two, unless I drop it. New machines aren't going to be 4 times faster, and cheaper, ever few years, like it was before.