why are they so scarce? or so damm expensive compated to other years?

i've been browsing private plates, RST, or FMC just to lift the look of mine abit really, but wanted to keep it on a H reg as its a 90 car. they're just in ALOT shorter supply than others.

WHY itsdriving me fucking crazy!

example, H8 FMC is £895 whereas G10 FMc is £424.