I'm in the market to buy either the tri-band BE85 vs the quad-band BE16000.  I'm thinking that it would make the most sense to use the BE85 because i will have a wired backhaul.  I'm thinking the extra band is only used for a wireless backhaul.  Does this sound correct?  I like the 10gb connection on the BE85.  Is there any reason to consider the BE16000 other than cost?  I would use this in bridged mode with a Firewalla Purple handling the routing.