My first question, as a user, would be - "How much?" Maybe create a page for each game you support with examples of quests/costs/the level of "companions" available and their experience...
Showing examples of pricing is tough. The way it works is that the job poster says how much they're willing to pay, and then Companions bid down from there. We decided against influencing the pricing, outside of having a minimum price of 10 gold ($1 USD).