If they paid a single developer/designer/salesperson around $80k/yr to maintain it, even after all the perks and insurance and taxes and whatnot, they'd still e

If they paid a single developer/designer/salesperson around $80k/yr to maintain it, even after all the perks and insurance and taxes and whatnot, they'd still end up on top if that developer did nothing other than maintain the current number of paid customers. What could hosting an app like this cost? Very little, I imagine. I'd personally find a service like Happy Cog Hosting (http://happycoghosting.com/ http://happycoghosting.com/) to manage it for me. Makes it feel like a steal for anything under $1mm (that's approximately 5x revenue), even without the promotion through association w/ 37signals. I haven't read anything convincing me that this isn't a great deal for an eager entrepreneur. EDIT: "They" in the first paragraph refers to any owner of Sortfolio. If you take it to mean 37signals, that's fine, but I doubt that Sortfolio has the sort of growth potential that 37signals' other apps still have, and so is not worth the effort to maintain.