Its funny you should ask that! I moved up here almost nine years ago with my husband saying...I'll take you to NYC, DC & Niagra Falls....I finally went with a girlfriend and the kids to NYC this past summer
Now each year we (my mother-n-law, myself, and all the kids) go to West Virginia the weekend before all the guys hunt..I just said something to her about when we come back that maybe we should just keep driving and go up to Niagra Falls! So I think we may do that next month in April.
Vacation will be in June..probably around the third week. I looked up vacation info for Yellowstone National Park...geez it is salty! Its amazing that we could go to an island cheaper. It normally costs us around $3000 or so but what I am trying to do is only take "bigger..meaning $" every other year so that we don't have to break our back saving that kind of money every year.
Some of the beach locations will be hard to get at 1500 also....airfare..or gas. We may end up camping out in the back yard for a week with a wading pool off to the side!
Keep the ideas coming..I'm looking up Michigan right now!