Text slides are kept to an absolute minimum -- if included at all.
And one indication of a good PowerPoint presentation is that it is impossible to print it out directly for distribution. My slides tend to have so much animation and graphical elements that printing the "default" view in PowerPoint is pointless.
You are absolutely right about text slides. PowerPoint slides are about graphics.
Typical Powerpoint:
Here's what I'm going to tell you
Here's what I'm telling you
Here's what I just told you
Any questions?
It should be:
Here is a photo or video that illustrates what I am telling you.
Now that I'm done, here's a handout you can refer to later to remind you of the content of my presentation.