Well, I went out and got myself a Leifheit cherry pitter, available on the web for around $35, and at Sur La Table for $39. Apparently Fine Cooking had just reviewed them and liked this.
I was able to pit 3 quarts in about 10-15 minutes, though some of that was part of the learning curve. There seems to be a certain way you have to poink the pitting thingy to get the desired results: pit goes into the hopper, while cherry rolls out into whatever you have there.
The nice thing about this was that I could watch through the clear hopper to make sure the pit went in. Once I figured out the right feel, I was able to pit about 7 out of 10 successfully, the other three I had to nudge the pit out or the cherry out. Still, it was about 4 times faster that the hand held type. Oh, and don't wear white while doing this.
Final review: glad I got it, though it doesn't feel worth $35. Its size and construction feel more like $25, but it's much, much better than doing it by hand. Of course, now the season's pretty much over for sour cherries in this part of the country.