If the DMV's YOM process makes me find a 1971 sticker, then I'll just cover it up with current year sticker. No room or desire for stickers in multiple locations.
Yup, I still see lots of black and blue plates that look like original issuance plates.
Also, I've seen a handful of these plates on non original, later model cars, such as a '88 Taurus wagon for example. Somehow they talked the DMV into this, lol....
I also have a set of early 90s plates (look just like current except the "California" is embossed in red block letters). I like the simple look of these on my car too and would avoid the YOM fee...