Don't believe weight has anything to do with it. Accuracy, reliability and long term repeatability on the other hand requires detail and quality, and even then I would tend to think that a manufacturer would make every attempt to keep weight within reason and as light as possible... Nightforce scopes being mentioned, if you compare their cheapest $1k scope to their most expensive $4.5k scope of comparable sizes there is only about a 30% increase in weight.28.5 oz. to 41 oz. If I had to rely on a scope and cost was no factor I'd tend to go with a 30% weight increase for that added reliability. Hell, I like heavier rifles anyway...
Phil
