Rich, thank you for creating and maintaining a tool that has helped me build a successful SaaS business. I could not have done this without your work and your insights. I also learned a lot from your talks, and I do hope to meet you again at one of the Clojure conferences.
I think Clojure is a good fit in a lot of SaaS applications, especially those that are complex. It helps in dealing with complex problem domains, and lets you reuse the same code on the client side (through the magic of ClojureScript). Small benefits accumulate, and while it's possible to write anything using any language and tools, Clojure reduces the amount of code and work that I have to do, thus enabling me to run a solo-founder business.