The capital expenses of land and buildings is modest compared to other livestock options. As many as six alpacas can graze on a single acre. Barn and shelter can also be of a modest size. When supplemental feeding is required, a small amount of hay is best. It is better for the alpacas than expensive feeds.
Alpacas are quite rugged and are disease resistant.
Breeding alpacas is a very satisfying occupation. Every alpaca in the United States is registered with the breeding association. More than just a point of pride, the resulting genetic studies are benefiting all alpaca owners. From a business and tax standpoint you can sell the offspring for income or watch the herd grow as a real growth stock. The wool should more than cover operating expenses.