I have many scopes from Leupold, Nikon, Weaver, and others. I expect a scope manufacturer to stand behind thier product. That is part of my concideration when making a scope purchase. If I am purchasing a scope that does not carry a lifetime warranty, then I know I am buying a "budget" scope. But, if I have a few bucksextra and I know I'm going to hold onto that scope (which I generally do), then I'll move up a price point and get same quality or better and the warranty. It gives me long term peace of mind.

This is just my personal justification when making a purchase. I also have a couple of "budget" scopes in the safe.