Just for fun, I checked cars.com to see how many Challengers are listed, nationwide, from dealers. The result- 1,500. There are also 250 within 100 miles of my home- with 5 identical matches of the SRT that I ordered in October.
This just shows that there are cars to be had, at possibly a good price, if you just do your homework.
See:
http://www.cars.com/go/search/search...9&aff=national