The part that I find appealing is the insurance company is sharing the gamble of my outliving my money. I don’t know if annuities work exactly like this, or if I’m misunderstanding something, but I’d buy an annuity on the following basis:
Me: “Here is $100,000 for you to keep. For the next ten years, it’s yours. If I die in the next ten years, you’ve made $100,000 free and clear. But starting in ten years’ time, I want to withdraw $20,000 from this account, and then $20,000 per year as long as I live.”
Insurance Company: “OK, your life expectancy, we see, is about another 15 years, so it looks like we can invest your original $100,000, pay out five years to deplete your $100,000, and get to keep the interest, earnings, dividends from your your $100,000 during the 15 years we had to manage the money. Deal.”
What I’m paying for, IMO, is the possibility that I’ll live much longer than 15 years and so I’ll have some source of income if I make it to my 90s. If I croak sooner, well, it’s basically my last $100,000 that I’ve sent to the insurance company that I wouldn’t have touched in the next few years anyway, so what do I care that they got to keep it? The insurance company, of course, can do with this thousands of clients, the odds being that on average they’ll each live to their predicted lifespans, losing a lot of money on those who live a long time, but making a lot on those who drop dead next week. I’m assuming the figures can be jiggered so the insurance company makes a decent profit overall from the thousands of people they sell annuities to.
Of course the figures need to be jiggered, but it seems a reasonable bet to place. IF, of course, this is roughly how annuities work.