I think that knowledge of mathematics and physics will be useful in my future life. Mainly because science is widespread today and people, who have knowledge in such kind of things, always have a job.
Also, it is quite interesting and profitable. I mean there many ways in which you may advance this knowledge, like in informational technologies or whatever. In my opinion, it is great to have knowledge in these sphere, because you can do whatever you want. You can become an engineer or a programmer, you have an ability to make money and prosper. It sounds nice, doesn't it?