The most expensive rifle scope I've ever bought was $200-ish on sale. I'm not a long range hunter or target shooter though, 300 yards is about my max. Out of budget scopes (my range), I can totally tell the difference in light transmission between a 30mm and 1" scope. A higher end scope, it could be more like splitting hairs. My only quantifiers for a scope is, at whatever magnification I need: fully multi-coated glass, etched reticle, 30mm tube, purged, hand adjustable and lockable turrets. I do NOT like a busy, range finding reticle. Some of their German reticles, kind of like trijicon are my favorites. I don't use dope so I don't care how well the erector tracks as long as I can zero and it holds. MPBR is my only real consideration. One day I may move out west and being able to accurately dope my scope could matter more.