Many agencies insist on a minimum monthly budget or ad spend. That’s because they charge a percentage of it. They have to make a minimum amount every month because they have a lot of expenses we don’t (office, staff, payroll, etc). We don’t have those expenses and are virtual. We don’t mind being paid a smaller amount than they insist on because our overheads are so low. ROI Revolution charge 15% of ad spend and you have to have a min monthly ad spend of $20k to hire them. Many small and medium merchants cannot get the help they need because agencies are charging too high a barrier to entry.