This is likely a service I'd use once in a while. Say I want to convert an html to mobi once per month, the listed pricings do not fit my use case. That means o

This is likely a service I'd use once in a while. Say I want to convert an html to mobi once per month, the listed pricings do not fit my use case. That means one conversion for 5 bucks. I know it isn't easy to set up the pricings but would there be any "pay per use" for people like me?