Oh, don't worry - I eat ground meat. But I haven't actually bought any for the last couple of years. Not since Mom bought this:
We both have Kitchen Aid mixers, and over the last few years, have been buying attachments for them which we share. She has the meat grinder and food mill, I have the pasta rollers, and the other pasta maker is on my wish list :)
But the meat grinder is one that I would buy myself if I couldn't borrow Mom's.
Why grind your own meat? It can be safer - store-bought ground meat tends to be the source of a lot of food-borne illness, and it is definitely cheaper, since you can find whole cuts of meat on sale for much less than their ground counterparts, especially meats other than beef. Have you priced ground chicken or turkey lately? Yikes! You can also control the amount of fat that goes in, but one word of warning: you do need some fat, or you'll end up adding oil to your meat to prevent it from sticking to the pan. Trust me on this ;)
I also like the ability to package the ground meat in portions that make sense to me, instead of trying to find the quantity I need for any given recipe at the store. I generally freeze in one pound portions, and seldom have to pull out more than one package for any recipe I'm making.
So, when meat is on sale for a good price, I buy enough to grind some. I recently did 25 pounds of pork (yes, 25 pounds!), and just used up the last of last year's ground beef, so I'll be keeping an eye out for a good beef sale.
Eventually, I want to source all my meat from local, sustainable producers, but I'm not there yet. And for beef and pork, the price of ground is generally cheaper, but I would still save money by grinding my own turkey and chicken.
And once you have ground meat, you can make so many other things...