Does everyone basically want pretty/nice things? Everyone has something they covet, right?
This is entirely human, IMO. I've done modules in anthropology and archaeology and I can see that civilisation grew and spread through trade. There were always 'chief' families and these people had the best things, and a lot of times, they were even buried with them, which shows how important things were.
It's natural. It's hard to escape the shopping culture, since we don't have to forage and look for food in any time consuming sense, is finding the right bits of clutter/apparel taking our instincts over?