Nobody on any of the threads is arguing that you should not be paid more for being on call.
The quality of life lost by being on call is not insignificant. This is why being on call should always be the absolute exception and not a reliable, planned in, tool at your companies disposal.
If you regularily fail to organize your core business around business hours, maybe you should get someone who is good at planing projects and communicating these plans and put them in charge? Or maybe just close your company and search for a different career path if you are unable to plan your projects?
Besides that, the rotation is known, and planned for, long in advance. So your "long-awaited weekend trip" shouldn't have been scheduled during your on-call shift in the first place.
Let it crash. If you can't afford to pay people enough that someone /wants/ to fix it at 2am, and you can't arrange a retainer for a contractor halfway around the world to be available if needed during their worktime, and you (owner/manager) don't want to do it yourself, then it can be off until someone starts at 9am next business day. (Most products and services aren't life critical).