It's never too late. I opened a DRIP at age 70; needed $$ at age 74, so cashed in at a nice profit; regretted cashing in, but as the last bank draft hit after cashing in, the account was still open. I started up again at age 75. Now I'm 79, still dripping and wishing I had the shares I cashed in when just a young fellow. :-)
My risk tolerance must be way up there since I've been holding on almost from the get-go. At the time of my purchase in July 2012, the distribution was just under 50 cents, giving a yield of 9.5%. I liked SDR then, and I like it even more now. (I re-invest the dividends into more SDR.)
Looking at the glass as half empty and selling now, you give up an 18% yield.
I'm happy for you loyal investors. ("Shares closed at $26.50 and were unchanged after hours. Through the close, the stock is up 22% over the past three months." Nathalie Tadena at the WSJ) I sold out at $30 and change in 2011.
This is OT, but my granddaughter, a lawyer, was among the 900 laid off on Friday. She did receive three months pay and allowed to take out her shares in their stock plan. It's hard to believe that costs 70 million.