I have no experience with Alpacas but a fare amount with goats.
Goats are the coolest most versatile barn yard critter. They are pleasant. The females give you rich milk. I have staked goats next to a briar patch that to be taken out - They did it for me. Goats love to eat that kind of stuff. Goats are clowns too. The goats across from the BOL love to sleep on top of cows who are bedded chewing their cuds. Oh and they are good to eat. Any male goats get butchered before they are one year old. You want to harvest them before testosterone takes hold otherwise the meat taste's gamey.
The bad think about goats is they are SMART! The goats across the way have been known to unlock the gate they share in the winter with the cows. They like to climb things including your car. Goats like to eat tree bark so if you have trees in your penned area they will die due to bark loss. They will eat ANYTHING including your just washed laundry hanging on your clothes line.
Have fun
