If you want to get the games moving and to counter the new vault achievements that slowed everything down, how about adding either a spot for amount spent listing someone or for total money spent. Right now there is a spot for Max amount listed which is kinda stupid. Here lets reward you for being hated in the game by putting you up on the board. If you add a spending achievement it will get people spending and to stop hoarding so dang much which has slowed the game way down since you added the new vault goals.
I agree, that would also separate the hardcore people from the people playing casually over the years.
One thing I like about this idea, is it would take the whole listing cheap/little guys out of the equation for the most part (to get the "x amount placed" achievement). It would be more beneficial to list people with higher bounty prices.
Love the idea. Both of them actually. Highest amount listed only tells you who is pushing their friends up the leaderboard these days. But average cost or total spent would be cool.