Last year i did my own, and will this year. Shelling out $80 per a deer hits the wallet really hard, specially if you bag a few deer in one year. If you harvest 2 deer a year and pay $150, you could of bought a good knife set, cutting board, table (if needed), hoist (if needed), and freezer paper you'll ever need. Then with the savings next year buy a grinder.
I do pay a local in my area to make SOME sausage.