Thanks guys. We were there for DD's birthday back in March and she was okay. I guess I just want to be sure I am not missing some cool thing that parent's of onlies do to make these kinds of trips more fun than they already are! And now that you mention it I have read alot of threads in the past of parents going one on one with each child if they have more than one. I didn't think about that until you guys brought it. 
Because we are taking a long weekend (Fri - Mon) and DD will be out of school a couple of days we can't take a friend with us this trip but I am not opposed, especially as she gets older, to her bringing a friend. The three of us do have a great time together and DD loves the roller coasters so we get to do most of the big rides too.
And Queen2PrincessG that's all DD ever asks for too - a dog!

Because we are taking a long weekend (Fri - Mon) and DD will be out of school a couple of days we can't take a friend with us this trip but I am not opposed, especially as she gets older, to her bringing a friend. The three of us do have a great time together and DD loves the roller coasters so we get to do most of the big rides too.
And Queen2PrincessG that's all DD ever asks for too - a dog!