Unfortunately, I don't think that S&W regularly makes blued guns anymore.
In Arizona, there are usually some good used ones around, and I buy everyone I find. Last summer picked up a Model 10 with a 6 inch "pencil" barrel in Tucson $220. (Murphys Guns always has a good selection).
I've also bought 3 4in. model 10s $148 each, and a model 18 $348. from J&G sales in Prescott. I order them from here in the U. A. E. by e-mail, and they hold them till I have leave in the summer. they're very good and if I don't want them when I see them, there's no problem.
Got a beautiful Model 13 4in. $289. from Prescott Valley Guns a couple years ago.