Realty Income has been a very enriching investment over the years. Realty Income (O -0.26%) knows how to make money for its investors. The real estate investment trust (REIT) has delivered a 14.3% compound annual total return since its listing on the New York Stock Exchange in 1994. That has enabled it to grow a $10,000 investment 30 years ago into more than $555,000. The REIT should have no trouble growing the wealth of its investors in the future. Here's why it should continue to be an enriching investmen ...