Wow, lots of bad experiences on here. Thought i'd mention for guys planning on trying it on their own to go check out Princess Auto. I bought a small hand meat grinder there two seasons ago for $15 (I was in college, i will be upgrading to a larger model if i actually shoot anything else this fall). Anyway, i've ground 5 deer with that unit, builds some arm muscles but the end product is worth it. If you trim it yourself you'll find nothing for grissle/bone chunks etc, best ground meat you can get.
My problem is all the relatives raid my ground from the freezer when their around,
none of them liked game meat until i shared a pack or two. If you know someone who cuts there own tag along for a deer or two this fall to see how its done, pretty simple. I am pretty good at it now, i watched it done once and then butchered the other half on my own. I also use all the bones (soup stock, and dog food) and damaged meat (dog food) so i would not really consider hiring a butcher (unless i get sausage made). Hope the princess auto tip can benefit someone.