It is my pleasure, I love building stuff. I keep the prices relatively low to make it useful for small business too. I hate it when software price is higher just to filter the customer base and they target only "enterprise" budgets. This is also a reason why I offer two pricing points for the same features.
I would gladly open source it if I find a way to sustainably work on it, but for now the revenue it generates enables me to work full time on it without being homeless.
