As has been noted countless times in recent months, dividend ETFs are a booming corner of the exchange-traded products universe. With good reason, too. In this topsy-turvy market, depending on capital appreciation alone is a tricky bet.

At this point, the yield story as it pertains to ETFs has not been completely unveiled. Most investors know they can find robust yield with a fund like PowerShares Financial Preferred ETF (NYSE: PGF) or get exposure to a broad swath of dividend payers with an ETF like the Vanguard Dividend Appreciation ETF (NYSE: VIG).