Joey, I would't worry about it. If you know what's going on, just get on with your projects as there's no overall right and wrong. At some point you might be working on a project that is getting it out of hand and you might see the benefit in OOP.
I started a project last year and was thinking the same. I proceeded to just bootstrap the hell out of it, but as time went on and it grew, it just became a monster to work with.
So I took a MVC approach to it, similar to what Antal talks about. The project has become a lot simpler to manage and more logical, which in turn saves me time when working on it.