We have a 1hp Cabella's Grinder with the foot switch and stuffing attachments along with a LEM 25lb Mixer and a LEM 25lb Dual Gear Stuffer but I'm not getting that stuff out and and dealing with cleaning it for anything less than 50 lbs. When it comes to making sausage, we're usually making 200-400 lbs at a crack so hence the the bigger equipment. Frankly the only bigger item we use a regular basis is the LEM Max Vac 1000, That get's used all the time but there's virtually no cleaning and minimal setup to use it. The kitchenaid works good for small batches of stuff and is way more convenient since it's sitting on the kitchen counter already and is something a lot of people already have. Took maybe 15 minutes to grind 12 lbs of pheasant and 8 lbs of bacon and that inclulded me cutting the meat into chunks.
Probably wouldn't disagree with the ground meat comment, the push handle for pushing meat down the throat of the grinder has some gap around the sides and could certainly fit tighter for pushing ground meat through. Frankly, I don't like double grinding through the big grinder either, it's a much slower process than the initial grind to get the meat fead through.