First of all, you’ll have no ads. Some people complain about the occasional ad-born virus that attacks the board so it might be helpful to think of your subscription as protection money. Second, you’ll experience an overwhelming sense of moral superiority over your fellow, less charitable Dopers. And finally, you’ll be relieved of burdensome money- just imagine, no worrying about what to do with the cash you spent subscribing!
Due to my many meaningful contributions to the board I was sponsored by a fellow Doper, so unfortunately I don’t receive the second and third benefits. But I have full access to the first.