Yeah, pretty much this. If I had Notch's amount of money, I'd just continue living like I do, just with more focus on the shit I like, and way more eccentricity because I'm rich and can afford to derp out as much as I want.
Moving to L.A. and buying a 20 million mansion there would be the very last thing on my mind. I'd be depressed too if I moved into a soulless modernist building in a city populated by hipsters. I'd rather buy a pompous 19th century mansion with class somewhere close to where I live now, preferably a bit offroad with some surrounding lands, and keep my current circle of friends and have parties with them rather than with shallow rich guys I never met before. And I'd never grow bored because there actually are things I like to do, and having money and not having to work increases the time I can spend doing these things.
Also, LOL at Notch's "when you have everything there is no motivation to go on doing more".
No, you faggot. You don't have "everything" yet. When you've conquered Europe and restored the Holy Roman Empire and can style yourself god-king, then you have everything.
No wait you don't because then you can finance space exploration and terraform Mars. You never have "everything". You can always achieve more. You can always improve yourself. THE RIDE NEVER ENDS