Correct me if I'm wrong, but although you have received dividends from REITs, you will lose any capital appreciation from those funds if/when RE crashes.
Personally, I don't think RE will crash as in globally, but it will collect it's share of foreclosures, stagnant sales, and a buyers market. I'm not a stock guru by any means, but it seems to me that the market might also be going down for a fall. Very overpriced, Inflation right around the corner, higher interest rates have to go up, and oil is up again (too high). We have also become a importing nation and produce little other than bad debt (which will be harder to dismiss this fall).
I've been reading Siegle (The Future for Investors : Why the Tried and the True Triumph Over the Bold and the New) & Schreiber (All About Dividend Investing) and they provide persuasive, compelling research to pursue dividend investing. When the market goes down, dividends will be able to purchase more shares cheaper than ever.