I doubt I eat a pound in a year. Are you vegan/vegetation? I can't imagine eating that much otherwise, unless you have a very unhealthy obsession with guacamole...
No, quite the opposite in fact - I'm often on a protein sparring modified fast and avocados are the only thing that make it tolerable (I know it's cheating but I don't care). I actually don't eat that much guacamole, pretty much only at Mexican restaurants a few times a year. I eat avocado sliced, sprinkled with olive oil or lime juice and some salt & pepper.
A medium avocado is 200-300 grams so it's not that much, especially if you don't eat many carbs otherwise.
They are fiber and potassium rich with a lot of unsaturated fat, which adds to making them a great “dessert” if you eat them with a bit of olive oil, salt, and lemon.