Old man... you should buy / make with that money a deep spacious house with many plants giving off oxygen so you can breath fresh air!!! It will help you get younger! Because the air pollution these days makes you age faster and sickness catches you easy!

I have a country place in the middle of a 50 acre sugar bush (maple forest) overlooking a waterfall. That's where I recharge my oxygen.
When my Bitcoin hoard passes $20M CAD in value, I'll consider spending a few million on a nice penthouse condo near the lake.
I have several friends with condos down there above the 20th floor and the difference in air quality is noticeable. It's like breathing country air. All the carbon monoxide and toxic particulates are heavier than air and stay near the ground.
Meanwhile I see the 0.152btc I bought yesterday
almost touched what I paid for it, then dipped again. Maybe by day's end (UTC).
edit: struck out "almost"