How important are animations to a game?

Hey everyone, how's it going? I'm rawmagic, the developer of the game NSFW - A PORN ANTHOLOGY. When I started making my game, one of the things I wanted the most was for it to have quality animations, and that's something I focus on a lot during development (some examples here). But as I played more AVNs, I realized that many games are very successful even with few or no animations (some completely static). This made me think, what do you think about animations in games (especially sex scene animations)? Are they important or not?