How old is the car?
There is a great post by Mike Phillips here from a few years ago on a similar topic. In the post he is working on a bright yellow hot-rod. The paint appears to be in respectable condition, but the biggest differences in the before/after pictures is the depth of the color. Polishing will not only get rid of swirls, but a an AIO, mild polish, or paint cleaner will get rid of years of built up LSP and other deeply embedded crud. The result will not only be a little extra shine, but the color will be deeper and more like it was when the car was new...if not better. I first used a paint cleaner on my gray Mazda about 3~4 years after I first bought it. Even though there were only a few faint swirls visible, I was quite surprised by how much better the color and flake "popped" after I worked on the car. The difference was quite noticeable.
If your car is only 2~3 years old and looks good, I wouldn't worry about it. If older, I'd look at the possibility of a paint cleaner or AIO simply to spruce things up a bit and deep clean the paint.