I'm of the opinion that a leather boot will always last longer than a full synthetic given care. I have a pair of Scarpa Wrangel gtx boots that have lasted more than 7 years and almost 1k miles but they are hot and heavy, not great on ice. It depends on what kind of hiking you do but I've heard great things about Meindl, Kennetrek, Crispi, Lowa, and Hanwag. Same with the made in USA Danner boots. I hear LaSportiva is kind of hit and miss. This is mostly from experience working on trails crews with the forest service. Most people I knew wore Scarpa.

I don't find the cost argument to be effective. My 350 dollar Scarpa's are still going strong after almost 7 years of consistent abuse while my 170 dollar Salamon shoes lasted about a season and a half before the heel counters and soles started to completely fail.

Something like this

If you want to significantly prolong the life of your mattress, get a protector that blocks moisture from your sweat from permeating through the mattress and causing wear.