We are prepping but our situation is unique. Our DC hasn't had a standardized test in years. We have no idea how DC will perform on a standardized test so want to know now, sophomore year, to get a handle on school placement. He has some learning issues - maybe. We're not sure, so this is a way to help learn. Second, we are seriously looking at some private boarding schools (son's request) and the first item they look at is the PSAT score. Those applications are due Feb. 8 if we go that far and really apply. Third, my parents were so poor they had no idea that the PSAT was the preliminary cut for National Merit so I just blew it off as "preliminary", filled in the dots and went on with my life. When the results came in I had no idea why one classmate went screaming out of the room that he was in the running for National Merit. I'd like to give son at least a crack at it since I didn't. Based upon later test scores and performance I probably could have made national merit if I had actually paid attention to the test, but when it is called "preliminary" well . . . I just filled in the dots. So don't get worked up about it. If you hear people are prepping for it they may have specific reasons like we do. We wouldn't be doing this if it were not for the interest in boarding schools or the question about how well DC can do on standardized testing.
Private boarding schools in USA (NE) look at SSAT.
I gather your situation is one of a kind/unique and understand why you need to know how DC will perform on standardized tests like PSAT but the rest of American families do not have this interest or need to know.