I keep a pretty tight budget, but I almost always spend more than I intend. But I almost never go over $200.00.
I also don't have a data plan on my phone, netflix/hulu/amazon, and my other hobbies (hiking and outdoor stuff) are generally free or less than a few bucks a month. It's literally one of the only things (outside of bills) I spend money on. I could honestly afford more, but... my wife would kill me...