well, darn, I wanted to be vague and useless, you killjoy. Instead, I’ll note that these forums have several recent threads going over 5e sales reported on Bookscan. (That means they set a floor, while the ceiling could be much higher, as discussed in the thread.) the upshot is that 5e official stuff keeps selling and selling, with a lot less decline over time than is usual for this biz. (I would maim (mean) people for curves like those on anything I wrote or developed.) The picture is qualitatively better than I’d have guessed, and Bookscan data are extremely reliable.