[alar44]

Thinking you can just buy 2 of everything is poor engineering practice. That's almost never practical. Engineering is about balancing reliability with other factors, not just over designing things.

Then again, maybe you're right, and you're the first person to come up with this idea.

[iptrans]

This is a straw man.

Physical path redundancy for backhaul and/or feeders does not require two of everything, merely that you close the loop.