Just a suggestion,How about...Having a gauge that fills either left or right when you Refuse or Sell an item? it works this way,the more the gauge is to the right,the less energy is lost by reccomending or surcharging customers,and when the gauge is on the left,the more energy it takes to reccomend and surchange!
MAybe you don't know, but we're just loving you for this comment. *_* We don't know when we'll be able to release the next episode (which should be 'overture: part II), because we've A LOT of work to do; but follow us on twitter or fb to stay updated: as soon as we'll going to release it, you'll know for sure! :)
Don't worry! It's coming in the next update!