If you find the reasons against outweigh those for an actual annuity but still want reasonably reliable income, there are some practical options.
For example, perhaps after several decades of working, saving, and investing, you have an extra half-million dollars. Your retirement plans plus Social Security provide you with the $60,000 a year you need to live on now, but you are not sure they will continue to do so as inflation eats away at the value of the dollar.
One alternative is to acquire a few rental properties. While real estate prices are depressed, there may be good rental income houses or office buildings in your area. If you are handy, fixer-uppers might be purchased and improved at low enough overall cost that your resultant rents will pay for maintenance, taxes, plus a little extra to keep you ahead of inflation while, chances are, the value of the properties will appreciate long-term as well.
Another is to buy a low-risk group of stocks offering both reasonably safe dividends and good chances for profits. Right now, many Blue Chips and other sound companies are available at prices seldom seen, true bargains among them. Investors apparently are still traumatized by the near financial melt-down of 2008 through early 2009 or are understandably disappointed over the poor performance of stocks during the past decade, a dismal record that I believe has not been equaled since the Great Depression. Yet others may be anxious about a looming double-dip after the just ended recession, or about new terrorist attacks, run-away inflation, deflation, a Japan style mini-depression, national or U.S. state insolvencies, etc.