Why buy that much fiat all at once? Why not just buy as much as you need as you go along.
I'd rather be retired with as much Bitcoin as possible growing in cold storage far more than a bunch of crumbling dollars in some bank account.
If you need to buy a new car, or some real estate, or simply some cash to party with, by all means spend some coins as need be.
Otherwise it makes more sense to just continue holding.
What if Bitcoin implodes and goes down to zero? What then? I think his approach is smarter, as he is guaranteed to enjoy the rest of his life with his $2m, even if Bitcoin disappears. And he is still left with more than 600 BTC for the future.
What if the dollar implodes and goes down to zero? It's probably as likely as Bitcoin imploding and going to zero, although both are extremely unlikely.
I can see hedging your bet by spending some coins on appreciating assets like businesses, land, or other means of production.
Fiat currency doesn't appreciate. It's a depreciating asset.
I do hope you're right about Bitcoin going to zero being extremely unlikely. If Bitcoin's value keeps increasing, then it's obvious that your strategy makes the most sense and guarantees maximum profitability, and also low to zero taxation for those of us with modest needs, as the conversion to fiat can be kept to a minimum and only when needed. Also, converting large amounts of BTC to fiat has its own problems. Do we trust the banks to hold our fiat? What if there's a bail-in, as it has already happened in Cyprus? Then there's the depreciation of fiat due to inflation.
All these are valid reasons not to liquidate, and follow your strategy,
provided Bitcoin keeps rising (or, at least, not dropping) in value. I hope Bitcoin has a bright future, but no one can know for sure, hence my conservative reply to BobLawblaw's post.
Indeed, there's a risk with everything. Even land can become unusable under certain circumstances. Banks can default and businesses can fail.
Risk reduction through diversification is a good thing. Fiat currency is just something I choose not to invest too much into.
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When I finally spend some of my hard-earned Bitcoin, I plan on buying land and and new implanted teeth and paying off what the taxman thinks I owe them. That would total more than what I spent to acquire all my coins. Then my entire stash would be gravy. That might be as early as January.
I've already arranged to buy the land with Bitcoin. I'm hoping the dental tourism clinic will accept Bitcoin as well. That just leaves the Canada Revenue Agency to be paid in dollars, so I guess I'll have to buy enough to pay them.