I'll keep tossing the rolls of
cat5e I stumble across into the tech waste disposal pile.. were not even allowed to use it at work and likewise I dont want it in my home.. who's to say in 10-20 years I wont have a few 50MP 3D 8k UHD cameras up and appreciate the solid gigabit connections running off the same lines I laid almost a decade ago.
AC WiFi is capable of being a "Gigabit" uplink, and if they have a few spare poe ports left over after this its a natural progression
Not trying to beat a dead horse but I'm confused on some of your reasoning - I also want to clarify for others that may interpret any of the above incorrectly.
Cat5e (SOLID core) is fully capable of 1000Mbsp (sure 1Gbps is 1024Mbps but seriously are we going to discuss 24Mbps as a breaking point?) and utilizes frequencies upto 100MHz, standards are POE upto 100M (328 feet total) the extra 10M is normally considered from patch panel jumpers, outlet jumpers, etc. So Cat5e is capable of being used for an uplink port in a residential environment and even many business environments. - Yes there are MANY examples of IP POE cameras being used upto 500' with quality cable and no issues reported, but I am citing Industry Standards.
Cat6 is capable of 10Gbps but only if less that 50M (150') but has a freq range of up to 250MHz, at 100M though you are back to 1000Mpbs capability and in the same place as you were with Cat 5e... One of the biggest misconceptions is that Cat6 provides all this better throughput ability and future proofing - but that's not the case unless under specific conditions.
Thus based on the reasoning above to future proof everything for the next 10 years, you would want to install Cat6a - which supports frequencies up 500MHz and speeds to 10Gbps the full standards distance of 100M.
As it relates to the need for Plenum Cable - Plenum is an area typically above a drop ceiling or under a false floor or an elevator shaft or duct work. This is area that is heated or cooled and provides that air to occupied space by individuals - this cable is normally more expensive as it meets different fire standards. As a general rule of thumb as it relates to professional environments. General use cable is used in offices or common space, Plenum cable is used in drop ceilings, false floors, or shared air spaces, and Riser Rated cable is used when going from one floor to the other and similar to plenum is coated differently so if burning the fire does not move up the cable and transfer from one floor to another, this cable also has a tougher jacket or reinforced string inside to help support the vertical weight of the hanging cable to assure the twisted pairs are not what are supporting the weight.
Again, not trying to be an ass here - just trying to clarify technical specifics as some of the statements above are based on an interpretation and could be interpreted incorrectly.