trading is horrible now values pmo

Bat dragons is 852 on elve, that’s insane cus like 2 months ago it was worth less then a NFR girrafe and now it’s over by 100+ elve. High tiers values keep going up by a lot in short times, a month shouldn’t change the pets value by multiple elve?? It makes no sense and it’s dumb but it’s the values everyone use. It’s not fun playing when getting better pets is basically impossible because other pets values don’t go up at all, or go down.