Worth the cost - Kowa Genesis 33 10x33mm Roof Prism Prominar XD Binoculars

I own a pair of these and they are awesome. I have a pair of Vanguard Endeavors I like a lot but wanted something smaller. I purchased these as well as another cheaper pair with ED glass trying to decide if it was worth the price difference. I was leaning towards the cheaper ones not finding a big difference until I tried low light viewing and then I returned the other pair.
I was on a recent hunt with a buddy who was raving about his vortex vipers. He had cabela's euros but had them fog on a big hunting trip and took back and purchased those. We are sitting in the blind looking at deer on a foggy day and he tried mine. He said "I used to like my vortex until I tried these". Very happy with the purchase. I imagine the 2500.00 alphas are better but these ARE worth the cost difference for low light and foggy performance.