Ridgetop
Herd Master
Why would you keep and milk many dwarf goats instead of 2 full size goats? If you are keeping 3 or 4 Nigerians, you could feed 2 full size dairy goats for the same cost. The labor involved would be much less - 2 sets of shots vs 4, 8 hooves to trim vs 16, etc. 4 kids to raise vs. 8, and only 2 breeding fees to pay vs 4.
Alaskan and Misfit are right about milking teeny tiny teats vs teats that fit in your hands comfortably. Whatever you decide to get, make sure that you try milking the goats before buying them. If they have not been milked much (or at all) they will be very difficult for you to milk properly and may not behave on the stanchion. Also make sure to taste the milk. Not all goat milk tastes the same.
Alaskan and Misfit are right about milking teeny tiny teats vs teats that fit in your hands comfortably. Whatever you decide to get, make sure that you try milking the goats before buying them. If they have not been milked much (or at all) they will be very difficult for you to milk properly and may not behave on the stanchion. Also make sure to taste the milk. Not all goat milk tastes the same.