That's why I am a huge fan of a system that would create a significant savings by purchasing a years subscription and a much higher month to month rate.
Example. Yearly subscription of $900. Monthly subscription of $95. $240 more expensive per year to pull the "pay as you go" card. You would save yourself the money in the long run by signing up for the year.
Either that or make subsequent IRP subscritions more expensive. Your initial start is at $95/month but if it lapses and you reup you pay more.
In other words make it cheaper to fly the promoter flag at all times because in all reality that's the way it should be.