10. Lowchen
Average Cost: $5,000
Country of Origin: France or Germany
The Lowchen (Little Lion Dog) is an historic European companion breed dating to the early 15th century in art and tapestry.
Lowchen Photo: Sue Thatcher / Shutterstock
Bred for elite households, it nearly vanished before numbers rebounded.
Under 18 pounds, bright, lively, and affectionate, it lives 12–14 years. Owing to rarity, prudent owners often choose health insurance coverage.