RE: Leupold or Zeiss ?
I have to agree with S.J. I also will pay extra for a good quality scope if it means between getting chance to shoot or not seeing anything at all, especially at critical time as dusk or dawn. With good quality optics it also make a difference when shooting in the direction of the sun at sunset or sunrise. You have a chance to see your game compared to not seeing anything at all. I know it happened to me.