I think it's worth it in some ways if it guides you somewhat on the things your interested to in knowing more about. There are some courses that is really difficult to learn by ourselves if we were to learn it by yourself. By studying a diploma course, we can get a head start. But of course we have to take note that by the time, we finish studying a course, it may be somewhat outdated, so it is good to learn more. It is good however that we get to meet people who have the same interest. It is not useful if we did not have that cash to study a course and then we borrowed a loan from the bank to study. It is good to gain some experience too.