In reality, and this is something I spent a long time coming to terms with, much shopping is done because it's fun. Spending money isn't a cost - it's the whole point of the exercise.
I'm also e-commerce-adjacent, but I believe fast-fashion (especially synthetics) is bad for humanity. Sure, people are making loads of money[1], but it's an ecological disaster in the making.
1. Me included, but only getting a little. Shein is getting ALL the money.
Sure, it's totally possible for a well-made synthetic garment to last as long or longer than a natural one (many of our dead uncle's double knit polyester slacks are still kicking-it in a thrift store somewhere). But we're talking here about "fast fashion", which is entirely cheaply made garments that, by definition, have a short lifespan. These are typically synthetic fabrics or cotton/polyester blends.
There's nothing wrong with mercantile pleasure per se. It's probably an incentive/reward mechanism in the brain to encourage comfort.
Like, when I make silly gadget purchases, yes it's fun to acquire the gadgets, but I'd like them to be good products that last too.
How much does this really affect your purchase, though?
If you bought a Garmin watch that failed after 3 years, would you buy the new model?
What if the same thing happened with your car and they refused to fix it? Would you buy the same brand again, or would you tell every single person you know to avoid them like the plague?
I think the thing is, that above $X, people really do expect a product to solve a problem effectively. Under that amount, though, much of what people spend is just frittered away.
For a tool, I don't want it to fail on me, ever. I don't enjoy learning to use a new tool for the same old purpose. I want it to just keep working. When I'm ready for a new way of that tool working, I seek it out. I do not want it forced on me.
That said, I also treat clothes as a tool. I buy new ones when I want something different, but until then I want them to continue as they had. When I'm sick of them or they wear out, I use them for woodworking, painting, etc, until they finally just are too ugly or damaged.