I bought one of those cheap green lasers and mounted it on my rifle just to play with. While it's cool and all to see the green beam at night, I'm not seeing what practical purpose a laser serves. During the day I don't see it offering anything above my aimpoint as a sighting system and at night it seems to act as a 'shoot here' indicator since the beam can be clearly seen and traced back to the source. And it adds weight to the rifle.

Am I missing the practical use for this?