Last year I took a break from playing a full season of FF because of time constraints; I felt like I couldn't put in the effort that I usually did on a weekly basis.
Rather than forgoing FF altogether, I played in daily leagues (not FanDuel but along the same lines). I really liked the experience. It was nice to have a shot at owning different players weekly and to enter contests in different size "leagues" playing for different sized pots. In addition, I liked the distinct strategy involved in daily leagues. Lastly, those weeks where I had no time on my hands for FF were no big deal -- I just didn't enter a contest that week.
If you're feeling burned out by regular FF, be it dynasty, keeper, or redraft, I'd say taking a break and playing only daily leagues is definitely worth considering. It's also good for those who feel that they might not have the time to spend week in and week out on FF but still want to dip their toes in the FF pool now and then. The daily league experience also teaches you to look at every player and hones your talent at finding bargains, which are skills that carry over nicely to regular FF.
I came back to the full season management type of FF this year because I missed it. I had my hands full with my regular teams so I didn't play any daily leagues this year.