Physical therapy

In an earlier post about my dislocated shoulder I had wondered about the efficacy of electrical stimulus therapy. Shifting to physical therapy, my thoughts are that the 15 minutes of time that was allotted was well worth it, if nothing else, it served as a enforcement device for making sure the patient completes their exercises.

PT also seemed like a pretty satisfying occupation - directly helps those in treatment, but at the same time seemed like a rigorous job which required standing and helping with patients for an extended period of time depending on how busy they were. Where I was they were extremely busy. A general description from the Occupational Outlook Handbook are here with earnings information as follows:
Median annual earnings of physical therapists were $66,200 in May 2006. The middle 50 percent earned between $55,030 and $78,080. The lowest 10 percent earned less than $46,510, and the highest 10 percent earned more than $94,810.

Median annual earnings in the industries employing the largest numbers of physical therapists in May 2006 were:
Home health care services $70,920
Nursing care facilities 68,650
General medical and surgical hospitals 66,630
Offices of physicians 65,900
Offices of physical, occupational and speech therapists, and audiologists 65,150

Some other stats from the Occupational Outlook Handbook puzzled me:
Metropolitan areas with the highest concentration of workers in this occupation are:
1. Sherman-Denison, TX
2. Missoula, MT
3. Waterbury, CT
4. Jackson, TN
5. Cumberland, MD-WV

Are there sports teams in these areas or more rehab clinics?

And what about these stats on earnings? Supply or demand?

Top paying metropolitan areas for this occupation:

MSA	Employment	Hourly mean wage	Annual mean wage	Percent of MSA employment
Laredo, TX	70	$51.67	$107,480	0.079%
Naples-Marco Island, FL	240	$46.23	$96,160	0.194%
Santa Ana-Anaheim-Irvine, CA Metropolitan Division	1,350	$44.77	$93,110	0.088%
San Francisco-San Mateo-Redwood City, CA Metropolitan Division	790	$44.41	$92,370	0.078%
McAllen-Edinburg-Mission, TX	390	$44.36	$92,260	0.178%