I have never owned my own goats before (though I have been a goat sitter). I'm looking to start a herd of Nigerian Dwarf dairy goats. One place I am looking has 7 year old goats for $300-350. Is that too old to pay that much for and expect good milk production for years? And the farm I am looking says I need a buck. I know they are little and gentle, but is this a good idea for a beginner? I only have 3 acres, so if he gets too stinky, we can only get so far away. TIA!