Newcommers are hit by huge prices of leveled cards. Veteran players simply don't want to lose their value and simply do not sell maxed cards lower. In this pat-situation there is no market and game slowly goes into stagnation.
Uncombining cards can be a good consensus between new and veteran players. DECs as a tax in this process grants additional usage of this token (boosts value!)
I hope good decision will be taken in this area.