I've owned the Bushnell and Leica (currently). Range finders can be used for a bunch of things. I bought mine after I shot a Calif mulie that looked to be standing with a bunch of does. After shooting him, I discovered he was actually about 100 yds BEHIND the does and after looking for blood, I found that bowl was loaded with red obsidian and EVERYTHING was red and shiny! I found the deer (finally) but bought a range finder shortly thereafter. I've also played with the Leupold which is cheaper than the Leica and Swarovski but still nice.