[Full disclosure - I've been beta testing snitch and been very happy with it]. In an old job for a mid-level bank, we had many behind the scenes (never showed

[Full disclosure - I've been beta testing snitch and been very happy with it]. In an old job for a mid-level bank, we had many behind the scenes (never showed up as a green padlock in any browser) integrations that would quit working when certs expired, frequently ones that we didn't purchase or control. At the time, it was definitely worth it to me to get some notice before that happened. And it can be easier to plonk down a credit card than work though internal processes to have nagios (or patrol express, <shudder>) do the monitoring. It's the same thing that makes pingdom valuable.