I have two pair that are awesome, my main is a vortex talon HD...but in 10x32 not 10x42 and they are absolutely awesome, way more glass than what they cost....unfortunately they have been discontinued so your only option is the rare left over or used.... I also have a pair of Nikon Yosemite in 8x30 and I think they are a ton of glass for the price. They can be had in the $80 to 110 range if you shop around.... there is also 10x30 in the Nikon and I felt like the difference was marginal with the 10x so i stayed with the 8x for little wider field of view. I know you said 10x42 but depending on your specific needs you can definitely get away with a little less power like I use. My binos are used regularly in PA and NY and can handle quite a bit of distance and are still good in dusk/dawn times...not sure how they would perform in out west type distances.