I'm really not into "stuff" at all. I'm very minimalistic. Just don't see the point in spending money on non essentials.
We've two cars, one was bought new in 2008, so 14 years old, and the other is 9 years old, bought new in 2015. No plans to change either as they both work and we look after them, so they look good. Previously, we had a car that hit 190,000 miles before it gave up. Never bought a car that had any life left in it.
We still live in the house we bought when we got married nearly 30 years ago. I've only ever lived in two houses! Can't be bothered to spend the time, money and energy moving!
Still wearing clothes I bought 20+ years ago. We buy quality (not designer, but "better" High street department stores etc). They're perfectly functional, still look good, still fit, etc. Obviously, buy new things for special events like weddings, but only buy when the old stuff is faded or threadbare or damaged for work, home, pubs, etc.
House is very minimalistic. Very little in the way of ornaments, internal design, etc. We sell all our books, DVDs, etc., on Ebay or give to charity shops, rather than letting them pile up on shelving etc. Same with our child's toys when he was young - we sold them as soon as he grew out of his pram, clothes, toys, etc., so as not to clutter the house.
We definitely prefer quality over quantity. Buy nice stuff and make it last, i.e. iphones etc - we buy and keep/pass down for a few years and then sell on ebay! Likewise laptops, etc. Electronic devices remain useable for 5+ years easily so why change just because something new comes out??