Why not buy up a large parcel of land, and since you are the owner, you can build soccer fields on it and lease it out for teams and leagues to use WHEN YOU DECIDE and you can keep the best times for yor rocket flying? You make $$$ off the footballers and have a launch site that can never be taken away by a parks dept.
Difficult to do in a city that is already built up, but you can plan ahead in areas with new construction.
You can even give your facility a cool name.
-Fred Shecter NAR 20117