Nelson Pines is a great experience with a wonderful family. I never saw the part with the Bed AND Breakfast, but the latter became very familiar in the last 4 days of my stay! They advertise Cooperstown primarily about the Baseball Hall of Fame or the Little League (12 YO) baseball experience, but it is so much more than "as advertised." The beautiful rolling surrounding farmland is so worth getting lost in to see wonderful old homes, which must have hundreds of stories to tell. The older, well kept homes are a pleasure to stay in and it's like going back to another time when there was more time.
Mels at 22 and the Blue Mingo Grill are outstanding places to eat. Also the Maskot's Pizza and Grill, across from Cooperstown Dream Park is open until 12 and if you get lucky, all of the umpires are over there sharing time together after the games.
The Dream Park Cooperstown is very well run and part of your great experience. They are very proud of their work and you will see why when you get there.
I am going to the Farmer's Museum tomorrow to complete my stay before driving back to Syracuse. I will miss it.