Also take GT's gear report with a grain of salt. While I have the utmost respect for her long term commitment to living outdoors she is very hard on her gear. I think she purchases gear more on a balance between performance and cost. I get the sense she doesn't fully account for how durability changes between normal usage and the usage of 100% in the wilderness user and just how much more careful with your gear you have to be to ensure longevity.
With regards to goretex wearing out, paclite is not designed for day in and day out hard living. Goretex even warns against this. It's a 2.5 layer technology designed to pack small. As such you have your GTX membrane with a soft and supple outer face giving you 2 layers. This technology requires an inner face to keep your skin/baselayer/inner clothing from rubbing the membrane into shreds. So for 2.5 layers they usually just adhere a bunch of microdots (reduces breathability by covering some of the surface area) that raises the membrane and face layer off your clothes. So instead the micro dots get worn down instead of the membrane, but when they're gone in high wear areas like elbows the membrane will start to get worn down and eventually fail.
That's why 3-layer goretex pro shells are so much more expensive. They have a much more durable outer fabric, the same membrane, and a fully cloth inner layer to protect the membrane. Also makes them heavier. A quality goretex pro shell will last a long time unless you're constantly in harsh environments (usually climbing where rocks will scratch and rip, or accidents, and destroy the fabric eventually).
However for normal use, unless there's a flaw in the membrane used and they delaminate, a jacket taken care of will work for a long time. You'll probably want to replace it just for being "old" before it's worn out if you're like a typical 40hr/wk weekend warrior.
Also your silnylons and cuben type jackets will suffer similar degradation due to abrasion, and these fabrics are not designed for high abrasion use (they're made for catching wind!).