There's a decent chance this car will become a modern classic. But you'll have a long journey to do before you get to that point - it's going to need regular maintenance, even if you keep the miles down. And remember, storing a car for a decade won't do it any good - especially with all the complicated electronics in today's cars. And, let's be honest, would it really bring you much joy if it's just mothballed? You clearly love the car so if you want to keep it, do so and just enjoy it and try not to worry too much about return on investment.