Therapy is extremely expensive. Period. Average costs vary by region, however the expense is usually a luxury. The right therapy is well worth the money - if you have it. The truth is, most do not.
Simply put, specialists are not a dime a dozen. Many people need to travel far to get to their therapist. We are in bigger cities, universities, and hospitals. Lack of access to current, research-based, effective treatment is another reason people do not treat their symptoms.
This is a barrier for so many of the things we wish we could do. Sometimes it's not that we don't know what the healthy thing to do is - it is just that we think we don't have the time to do it right now, let alone on a therapist's schedule.