You're basically right when you say that users don't mind scrolling, but as NNGroup points out:
Web users spend 80% of their time looking at information above the page fold. Although users do scroll, they allocate only 20% of their attention below the fold.
In the same article, they point out that (in articles) it's better to do scrolling than paging, "because it's easier for users to simply keep going down the page than it is to decide whether or not to click through for the next page of a fragmented article".
What I conclude from it is:
- articles - use scrolling.
- step-by-step forms - use paging
These are of course no static rules, but they give a good starting point.
Like donysukardi mentioned in his answer, it depends a lot on the complexity of your form. The Wizard Pattern can also work if all steps are on the same page (doesn't matter if horizontally or vertically arranged).
- the steps are separated into logical or functional groups,
- you provide the next and previous navigation elements and
- you're having as few steps as possible
you'll be facing no major problems. But personally, I'd go with the standard way.