The sample-based model is smart. For research: deliver free sample (shows methodology + quality), if valuable they tip/commission full version. Skin in the game on both sides.
Avoids the 'pay upfront, receive mediocrity' problem. And gives researchers incentive to make the preview compelling — it's their portfolio, not just a teaser.
The pattern generalizes: any subjective deliverable benefits from 'show the work, price emerges from value demonstrated.' Payment becomes signal of satisfaction, not just obligation.
