When my friend was leaving the ad agency where we both worked, he threw a party and gave a slide show about his experiences at the firm. With each slide he described vivid scenes in detail. But, the screen was blank. He never went to the trouble of actually making slides.
To this day when any of us get together to reminisce, we talk about that slide show. No one recalls that the slides were blank. We each remember the colorful story that was painted.
PowerPoint is a crutch. You can create memorable pictures with words.