14. Cocker Spaniel
The popular cocker spaniel, costing $800 to $1,200, is a difficult dog. Not only are they high-maintenance companions that demand attention all the time, but they also need extensive grooming.
Owners have to dog-proof their house to prevent destruction when it throws a tantrum. The cocker spaniel has to be groomed every four to six weeks, and in particular, the distinctive fluffy ears need weekly attention.
Baths, either weekly or bi-weekly, are important for their luxurious fur.