It fascinates me how quickly your one man shop is growing. I remember reading a few months back that your MRR was $30K. Kudos Dan! Have you ever thought of hiring someone to offload some task or take it to another level or you prefer to keep it as it is right now?
There's really not much to offload. Sysadmin is 99% automated, from making (and testing) backups to scaling capacity ("the cloud!"). I've never done outbound sales, so there's no sales machine to grow with staff. Support consists of a half dozen e-mails most weekdays, which isn't enough to keep even a virtual assistant busy for more than an hour. All that leaves is occasionally seeking out new marketing opportunities, and working on the product, which are the parts I like, and can do as much or as little of as I care to any given day. Slow and steady growth will work for me.