When offering a project-based service some of your clients repeat while you never hear back from others. Surprisingly enough, this recurrence property does not correlates with the variable “the client said s/he would hire you again”. Therefore, I dare to state the following law on recurring clients:
The more a client tells you s/he has more other projects for you coming after this initial one, the less likely this is true”
Based on my own experience , the intersection between both sets of clients (those that repeat and those that say they will repeat is practically empty).
I guess those that emphasize a lot the long pipe of projects they have inline for you, hope they will get a better deal for their one and only project they actually need your help with. Quite naïve they think like that (I do offer discounts for recurring clients but obviously not in the first project). These naughty clients …. 🙂