my opinion you get what you pay for! Some of the cheap lines of Optics may be good enough for range planking but you sure as hell do not want to have your life depending upon them. I’ve had some sightmark products & other low end products on a couple range toys, worked okay, but distorted glass, lower light gathering, and not always using quality materials. things break easier and just don’t seem to hold up. mid-range Brands, Nikon, bushnell, vortex etc tend to be more rugged, clear & bright glass, better construction, dependable, better value, more than affordable and will definitely get the job done well. anyone that is spent a whole day looking through the scope shooting or through binoculars or a spotting scope, notices the difference between a shity optic in a quality optic. Poor quality optics will cause severe eye strain, headaches, mess with your vision. Mid-range to high-end Optics will save your eyes throughout the day and are well worth the investment. I always optedfor mid-range to high end on all my weapons & binoculars and spotting scopes. I wanted the brightest and clearest in easiest on my eyes that I could get.