Research by Nielsen Norman Group estimated that on average, only 28% of website text will get read, and more likely only around 20% of the text will be read. By contrast, 65% of website users will watch 75% of an online video.
A study by 3M showed that 90 percent of the information sent to the brain is visual, and visual information is processed 60,000 times faster than text. Video can then be really effective when you need to get a large amount of information across to site visitors quickly and concisely.