I had a 4" 6 shot 617 and loved it, but then decided that I needed a 10 shot. I found one on an auction site with a 6" bbl and got it for $550. More than i wanted to pay but I REALLY wanted a 10 shot.
Long story short, I found the 10 shot to be 66% more fun than the 6 shot and the 6" more...