What up with all this supa serious questions meow? Schoolwork?
Well, I think you're pretty spot on. It's basic company finance. Things don't happen overnight unless it's absolutely vital for buisness. Not that i'm an expert or something but i know how it works in my line of buisness.
Plus, obviously prices go up faster than they go down, unless the competition and demand isn't super high (as it is for gas). They will wanna make that extra buck and keep the prices up as long as they can.
Lucky me I sold my car and go public transport or ride the bike.