Ninja as a 2nd Bike

2-Bike owners, have you found it practical to keep 2 motorcycles? My only overhead is a practically non extant liability insurance, but still I'm concerned having two motorcycles will be redundant. What have you done with your Ninja to keep it happy and in its own niche of usefulness?

Or, I could just be sad because I don't really want to get rid of it. Misery loves company? :D