The Scheels near me is closing to move to a new bigger location. Even the guns they had on "sale" were overpriced with used ones being priced as new ones online. They had a very good selection.
I have an uncle who is a very small dealer. Hobby really not his livelihood. He is usually able to get me stuff within 3 or 4 months of a release date. How long they start manufacturing before release varies from company to company and how big the production run is I would guess.
250s are done I believe as well. They were not a good gun and sold even worse. I'm a huge sig fan but I would sell that thing off pronto...