i/ I get paid $799 up front. $699 on the back end. (my model; however, different models vary)
ii/ I get another listing under my name on MLS®, aka more advertising.
iii/ When the Mere Posting sells the seller uses me to buy their subsequent property (if they are staying locally).
Why REALTORS® aren't embracing offering this service is beyond me. As a consumer its also a great service for those that are willing to tackle some of the work of selling the home on their own.