I am going to need my arm twisted on the Vortex stuff. I hear too many people who love the Vortex warranty... because they used it more than once.
With Vortex, you get what you pay for. Vortex has a large product range, and a large price spectrum. The cheapest products are made in Communist China, the mid-range are made in the Philippines, while the high-end product lines are made in Japan (Razor) or the US (AMG).
Your required usage of the (astonishing) Vortex warranty depends on how much you're willing to spend.
I do not own any of their binos yet, unfortunately, just two Razor rifle scopes and both of them are fantastic.