Personally, I'll never own a bino and rangefinder combo. Electronics go bad, become obsolete, etc. Eventually they fry, and with the exception of Vortex and Maven, there isn't a single company out there who will warranty the electronics beyond 5 years, most are only a year. When the electronics go bad, you're just left with an ergonomically inferior pair of binos and you STILL end up buying a new rangefinder anyways, or another pair of expensive rangefinding binos.
Look at it this way:
Setup #1:
Zeiss Victory RF 10x42: $3,699.99 (from our friend Doug at CameralandNY)
After 7 or 8 years, they crap out. Here's an excerpt from Zeiss themselves and their warranty policy for US and Canada: "The warranty protects against defects in workmanship and materials in the optical system for the life of the product, and in electronic components for five years from the date of purchase. "
So now, you have some heavy rangefinding binos that don't do 50% of the function they were designed to perform, and you end up buying a new rangefinder or another pair of rangefinding binos for the same money as the first time. Your alpha glass just became disposable.
Setup #2:
Zeiss Victory SF 10x42: $2,899.99 from Doug
Sig Kilo 5K: $699.99 from Doug
Total Investment: $3,599.98 ($100 less on initial investment)
Sig dies after a few years, no more warranty because it's beyond their window. But your binos are still as relevant as they have ever been, so you just plunk down another $700 for another rangefinder and keep hunting.
Yes, you can use the RF binos after the RF dies, but once it's dead it's become $800 of blown cash that you'll have to blow again anyways.