The Importance of Stock Photos in Video

I use stock photos sometimes, but my rule for it is, does this make the video more entertaining to watch? If you have a cool drone shot of traffic, at least that's visually appealing to look at. I don't want people to be too hung up on lower-preview seals because then they're gonna start asking themselves, like, is every piece of b-roll a lower-preVIEW seal? That's when you want to ask. But I love showing the books that I'm talking about with my overhead setup. It's just using galvanized steel pipes from Home Depot and, like, shop lights with wax paper taped over them.