Assuming you are living solely off your retirement and not any transfer payments, you are likely one of a few examples who are able to do this and, more importantly, want to do it this way. This also implies that you likely have accumulated over $1M to give you an annual yield of just under $40K. Or, you have been taking on more principal risk (so your situation actually can suddenly change) to generate that return with a lesser amount.
If my assumptions are on the right track, I am curious how you were able to build your savings. Are you a special case where you've had no expenses for raising kids, their education, past mortgages, etc.? Maybe a high earner? I don't mean to be rude or unduly inquisitive, but my belief is that an overwhelming majority of working Americans will not be able to achieve this unless they are in some special position allowing the "extra" savings to be socked away.
Further, I find it hard to believe that you can spend "as you please" with an under $40K income. And, while my conservative side says "to each his own", I'll posit that many who plan to retire look forward to a retirement life offering more diversity and choices than one can living on $40K in a small town.
So, it sounds like quite a feat to come up with the right amount of retirement funds (most people will have families, buy a house, take on a sizable loan, put kids through college, help them get married, etc. - normal life/family stuff) just so their retirement years can be relegated to a fairly narrow sort of existence that likely wouldn't really echo what they were used to. After all, once one retires, isn't that the time to experience things, new things, have fun, meet new people, go places, visit with children and their children, enjoy theater, opera, good food and company, etc.? It's what life is made of.
I don't mean to judge your choices, not at, all. After all, you are able to live debt and obligation free and you seem content. As I said, quite a feat. I am only going with what an average retiree who's had a certain lifestyle would have a vision of, after all that hard work they've put in. And, it looks to me that after doing all that, this average retiree won't have a chance to save even a million, which even then can only promise a mere shadow of life they thought they were going to live.
I truly appreciate your input.
/Wulfrede