Will you be using it Labor Day through the Fall ??
I'm sure there other storage areas, but if you store it one of the big 3 you can take it out and end your contract at any time. We leave ours at Ocean Lakes at times usually mid Summer to Thanksgiving and take it home over the winter and go other places in the Spring. They charge only for the time it is actually in their care. They pull it to your site no extra charges just tell them when you want to take it with you.