Although some terriers have been known to make millions for their owners, keep in mind that they often require high upfront and maintenance costs, depending on the specific breed.

Initially bred to hunt vermin in Northern England, the Lakeland Terrier is a smaller breed with an average price tag of $1,200. Known to be fond of people, this dog is one of the most expensive to own because grooming costs an average of $65—and finding a groomer familiar with the breed’s distinctive style can prove challenging.