I'm not talking things like Atari Flashbacks. I'm talking about 1st party hardware from the manufacturer itself for a platform that has never left production. Not classic gaming plug and play revivals, typically from 3rd party companies like AtGames that do little more than license some IP years after the commercial demise of console platform, and usually don't even accept original media.
And like I said, Nintendo launched an entire redesign a little bit over a year before his 1999 time frame that the platform suddenly became retro. As for the sales stats, I most certainly didn't pull them out of a hat. So you will have to do better than that. Your intense research if it ever actually happens will quickly reveal this data that Nintendo has available and which has gotten a fair bit of press in recent years.
Or like I already said, it's right on their Japanese website. You could just go and actually take a look for yourself. When you do, you will see that Nintendo sold 2.04 million Super Nintendo systems and 14.5 million games in the 1998 fiscal year, 1.43 million systems and 6 million games in 1999, 280,000 systems and 1.5 million games in 2000, and 90,000 systems and 150,000 games in 2001.
That was the last fiscal year which included North America (which constituted the bulk of sales in the recent years leading up to this). It may have contributed past that date but sales weren't enough to round up to 10,000 (Which is what these figures are in). Then in Japan it lasted at least into the 2004 fiscal year where they sold enough systems to still count as 1 (10,000 units). Not enough games were sold to count that year.
So if someone considers the end of a console's commercial life as one determinant in the overall classification of a platform, which I'm sure I'm not alone in considering, that one was still kicking pretty well back around 1999.