Most RTS games I seen are just a matter of figuring out the proper sequence for building, then building the right units, then massing the attack, and then attacking. There's little real thinking or strategy involved. Eventually everybody knows the best way to quank everyone else and it's a simple matter to know what your opponent will do.

Boring.

There are a few RTS games though, such as sudden strike (which had no infrastructure model, you're stuck with what you get and now you need to make the most of it) where people might actually have to think ahead about how to go about things.

It's a matter of what a person's personality is like if you ask me. Some people are uncomfortable having only their view to go off of (i.e. FPS, you can't see the big picture). They'd like to know everything that is going on, and don't tolerate surprises.