The Deerfield was sold from 2000 to 2006 and a total of only 17,440 were made from a single run. (This compared to the Carbine from 1961 to 1985 with a total of about 271,000 made.) Most of the Deerfields by far stayed in the U.S. That's why they're relatively scarce now. Even when they were available the dealers could not keep up with the demand. More and more of the guys that have one are realizing their desirability and are less and less likely to part with it. I know 4 guys who have them and it is unlikely any reasonable amount of $$$ would pry one loose. One guy has 2 - one brand new never fired which he's saving for his son who is only 10 now. As someone else mentioned keep looking and you might get lucky but if you really want to coax one out of the closet you likely need to offer more than the $1000. Elwood Epps (advertisement above) does get the odd one. The last one they had sold for over $1000. You could possibly contact them and get your name on the waiting list. BTW, although the removeable magazine of the Deerfield (99-44) is convenient, the Carbine is lighter, handles better and is less likely to jam. I have both and that's just my opinion.
Another comment..... One would think with the popularity of the Deerfield, Ruger would continue to manufacture and market it. The problem is the Deerfield was and again would have to be made on the same line as the Mini 14. Which means shutting down the line, re-tooling for the Deerfield, do the run, then shutting it down again and re-tooling for the Mini 14. So now it becomes a matter of dollars and cents. They can and do sell Min 14’s as fast as they can make them so it’s not viable to interrupt the manufacture of the Mini 14’s to manufacture Deerfields. In hindsight, had the popularity of the Deerfield been forecast they would have made a much much larger run than the 17,000 plus that they did build. As long as the Mini 14 continues to sell as it does don’t ever expect to see the Deerfield go back into production.
Ron