I toy with the idea because I'm a minimally-competent drummer, but I find I can program far more interesting beats than I'm capable of playing. One skill definitely complements the other in terms of understanding how beats interact with a piece of music. Rhythmic skills are always useful when sequencing. Especially if you're live-sequencing.
The new Yamaha FGDPs look interesting for finger drumming though. I'm not into it enough to actually buy one, but I'd love to try one out.