I wouldnt want to see the top 50 contributors lowered, then people will make guilds with "the best" players and and only let in the amount that is allowed to contribute in efforts to keeps the prizes from the rest, and try to make the prices really high. Even tho the top 10 get items its not as many at the 1st place team. This will make it to where the 1st place team controls the market, top 50 is perfect.