The only type of annuity you can buy which makes any type of sense whatsoever, is a Single Premium Immediate Annuity (SPIA). They are very simple, and as such can be compared across many different companies. This encourages competition between the insurance companies, which brings your costs down. Simply put, a SPIA says, "You give me X amount of dollars now, I will give you Y amount of dollars per month for the rest of your life." That's it.
Unfortunately, since they are wining and dining you so much, I highly doubt this is the type of annuity you are being
sold from these
insurance salesman. I'm almost certain they're pitching you on a variable annuity. Don't do it. It's almost guaranteed to be one of the worst investments of your life. Here's a good link to learn more:
http://www.obliviousinvestor.com/single-premium-immediate-annuity/Edit: Your expenses are $48k, Social Security will bring in $45k, you have almost a million in liquid investments, and your house is paid off? You have
absolutely no need to buy any type of annuity at all. You already have one (Social Security!) that's almost fully taking care of your expenses. You can put your liquid investments in cash and still be able to withdraw $3k a year for the rest of your life. The fact that the firm knows this, and is still hard-selling you, is evidence that they are salesmen and not financial planners.
Why are you looking for an annuity at all?