The least expensive laser rangefinder on the market that I am aware of is the Bushnell Sport. I have owned one for about three years now with no complaints. The only drawbacks to it are that it doesn't have many of the fancy modes that the more expensive models do and it is not waterproof. Neither issue has ever been a problem when I needed to use it for bowhunting. I think they are selling for around $140 most places now.