If I was his place, I would have remained invested and purchased the whole company after 10 years. That will be possible when Bitcoin reaches 10 million mark or more in future.
If I was in his place, I'd have remained quiet and not spashed my name across all the press. I expect people were asking him how he could afford his Lambo, and he couldn't say, "my day job gave me a rise", so he had to tell them the truth.
This is the downside with these types of cars - they attract attention to you.