RE: Who bowhunt's using a rangefinder?
I find them very useful.
setting up the range
in the woods I use them the first few times to get distances, and if it's that time of season, I'll just put some scent bombs close to those trees that I know the range of.
on a field, I can't tell squat for distances, the fields I hand at are huge, so they are very handy. My brother actually uses them on deer when he's hunting on the field. I mean at 30-35 yards! I could never do that, I'd be to worried about getting busted.
At home, I'll go out on the top deck, to simulate the stand the best I can, and use it to help judge distances (kids are great for running around and helping without knowing it)
plus, they are just plain cool!