I see advantages to porn, as long as it is used for good.
This are the reasons why I think porn is good (depending the type of porn).
I've always had troubles controlling my arousal level, the closest thing to seeing a real women naked, is seeing a women naked on vide, you can use porn as a resource to get sexually aroused, but then to take control of that. To in a way, enter a meditative state, while sexually aroused. Which I thing is extremely important.
Also another advantage would be to release sexual tension or frustration, this has saved me a couple of times.
Being a student in college, we as males are surrounded by tons of beautiful girls, walking by, we can't be with all of them, we can't be with the chicks on TV, in the movies, on the internet, this creates a lot of sexual frustration, you can release this by masturbating. Another benefit is that this might save you from doing things you might regret later on. Like saving you from having sex with a girl you don't really like and would end up treating her like crap afterwards. If you have released this sexual frustration is easier to make the right decisions when it comes to having sex, it's easier to use a condom because you aren't too excited to the point were you don't think about what you are doing. Also, girls know when you are needy, and the more needy you are, the less you get. So that's another advantage.