I mean, it's all a matter of what yield you have and what interest rates do; if the market doesn't hickup, or it's a little hickup, and it keeps skyrocketing, rates will start rising more and more which kills the price of bonds. At what point does the dropping NAV counteract the dividends you get. I guess it doesn't really matter much if you don't sell it and you're happy with the dividend. As rates rise, the price of any bond fund is going to start looking uglier and uglier, especially on longer dated funds.