I too have a face book page. I like it and you can as others have said have your settings private. If someone does try to friend request you, you have the option to ignore them or add them. Just because they find you on there does not mean you have to except them on your list.
I am not so much into the games on there, I tried a farm game, got sucked into it for about 3 months, oh my goodness it took me away from everything lol. But I gave that up and now just use it for the people I keep in contact with.
I am living in Michigan but I am from Philadelphia, so I get to keep up with all my family back home, and here I get to stay in touch with all my friends in and out of the ministry and so forth. I can keep track of special events such as concerts, birthdays, speaking engagements and so on.
I think it is (for me) much better then my space I do not have one of them.