Question on port matching

I'm trying to educate myself on engine building. I'm reading what I can get. My question is, is port matching worth it on a mild build? I've read on it and some people say that it is while others say it's not. So I thought that I would ask guy's that have the experience on the matter.
Port matching is just preventing a mismatch between the head and intake. It would be interesting to see dyno results. It can't hurt but how much it helps remains to be seen. Even a slight increase in power is a plus and it just costs a little time as long as you already have the tools.