[ryanto]

It depends on the type of work you do. If you are putting together a handful of pages and only plan on spending a few hours writing CSS then probably no need for preprocessor.

On the other hand, if you're a front end developer or you find yourself working on CSS multiple times a week then you should absolutely use a preprocessor.

There are tradeoffs between the two approaches, but preprocessors do save you time so the added complexity can be worth it the more you work on styling.