Is regular servicing actually worth it or just a way to keep the garage in business?

My car's coming up on its service interval and I'm debating whether to bother, because honestly it runs fine and I've always thought of servicing as one of those things you do because the sticker says so. A mate reckons skipping it is fine as long as nothing sounds wrong, but another one went on about small issues turning into big ones if you ignore them. I came across royalprinceautocare.com/blogs/why-car-service-is-important/ and it made a decent case for the whole thing, but I'm still on the fence. What I'd really like to know is whether people here have actually caught something serious during a routine service that they'd never have noticed otherwise. Also, does servicing actually help resale value here or do buyers not really care as long as it starts?