I agree with that, the best grinders I've ever used were Hobart commercial grinders and I've had 2 friends that had them, both of which I used. One of the guys had a brother who was a butcher and got the Hobart after his brother died. I'm convinced I could've stuck the leg bone of a deer hind quarter into the throat of that grinder and it would have sucked it in and ground it up with no problem. It was scary powerful, and about the size of 2 big microwaves on top of each other. It was impossible to feed meat as fast as it could grind it. I also have experience with a Cabelas grinder, and the one we had was excellent. Seven of us went together and each kicked in $70 to buy one of their better ones 15 years ago, but I had to leave that when I left Nebraska. I'm a little embarrassed to say I now use an $89 (on sale) Northern Tool grinder and surprisingly it is excellent, though slow as it's pretty small. I've done probably 10 deer and 20 or so hogs with it so far. I had an LEM grinder that I absolutely hated. It must've been a lemon as I like the rest of their stuff.
Whatever grinder you get, make sure it has a reverse button. Nothing's worse than getting a grinder jammed and then have to take it apart to clean it out. I also feel safer with a reverse button.
George