The more commonly suggested models, and with good reason, are the Nikon Monarchs, Bushnell Legends and many of the Vortex models. I have owned each of these models and can say that they do offer excellent performance versus price. If you are looking to upgrade from some of the sub-$100 models that most folks begin with then these are the models typically worth looking at. The above mentioned Pentax are also excellent for their price though they are a bit more expensive than the Monarchs, etc....