I almost started my own company to bring out a LR in the early 90s. I did a lot of investigation on LRs, but then Leica brought out the Geovid and my prospective partner folded his interest.
The Leica Geovid has an extremely narrow beam diveregence. Beam divergence to lasers is what shotgun choke is to a shotgun's range. Sure, many rangefinders can measure out past 1000 yards in good conditions, but can they detect the difference between a deer and the tree behind it?
Unless you have a tight beam divergence, you might be reflecing energy from a nearby tree or rock. And at LR, it doesn't take much to miss.
In terms of beam divergence, here is how those LRs that I have tested stack up:
Geovid
Lieca LRF
Bushnell