yeh that is sort of true,
I am in the procces of buying a r32 gts-t, the plates atr about 3,500 at the moment but in about 2-3 weeks they will be at 4,500 but i havent hers that they are going to get any heigher than that, but of course :)i would love the value to go up by that amount as i got mine for under 13 with some mods and big wheels.