I've played Saya no Uta, Katawa Shoujo, and a bit of Clannad. I haven't played much visual novels, mostly because I can't really find the time and most of the really good ones are 50 hours long. I've enjoyed the ones I've played. I love Saya no Uta, and I like Katawa Shoujo. The Clannad VN bored me, though, so I'll just stick with the anime, but it has less to do with it being bad and more that I don't have the time to invest in a VN that long and slow.
Whether or not visual novels are games is certainly debatable. This is simply another case of "My definition of *blank* is different from your definition of *blank*." It's like "Are Video Games art?" or "Are Anime cartoons?" Everyone is gonna have a different answer. With that said, though, going in with the same expectations you would other types of games is certainly wrong.
For me, they're skin to old interactive adventure / puzzle games, or a choose-your-own adventure type of game. While ultimately for most of these games you're simply picking out of a handful of branching choices, you need a clear end goal to pick the ones you want. Whether you want to get a certain ending or to romance a certain character, your aiming to achieve a specific goal, and you achieve that by picking the right choices. That, to me anyway, makes them "games."
Whether or not visual novels are games is certainly debatable. This is simply another case of "My definition of *blank* is different from your definition of *blank*." It's like "Are Video Games art?" or "Are Anime cartoons?" Everyone is gonna have a different answer. With that said, though, going in with the same expectations you would other types of games is certainly wrong.
For me, they're skin to old interactive adventure / puzzle games, or a choose-your-own adventure type of game. While ultimately for most of these games you're simply picking out of a handful of branching choices, you need a clear end goal to pick the ones you want. Whether you want to get a certain ending or to romance a certain character, your aiming to achieve a specific goal, and you achieve that by picking the right choices. That, to me anyway, makes them "games."