The usual drop in a non-sale situation is a discount coupon which you will 100% not need.
About the cash globes: in the final hours before the sale ends i expect to see pages upon pages on minimum possible selling prices. After sale ends all globe cards in existence get erased.
It's first time i experience that situation and it will be interesting, if not hilarious, to see will it play out how i predict or will greed play it's role and people will keep prices up expecting to get what they think they deserve rather then trying to get what they can, before they can't anymore.
And if steam market crashes = lolz upon lolz for me