Please convince me not to sell my R32 gtr.

I've owned my car for 12 years and I've been through everything with it. But I live full time on my sailboat and I'm travelling around the world, it sits in storage and everytime I go back for a week or 2 I do a quick maintenance and check over, usually needs new tires and a new battery then I drive around and store it again.

One day I might go back to land life but for now I feel like it's such a waste and it just collects dust in storage. I flip flop back and forth daily about keeping or selling it.