[lproven]

> I never bought used computer parts.

I was taken aback by this.

I almost never buy new parts, except phones, and not always then.

I don't think I've bought a new computer since about 2001 or 2002, and then, that was because someone else was paying and her stipulation was new only. Before then... the 1980s?

Computer hardware is like a car: when you exit the shop, 25% of the value just dissipates like a puff of steam. Within about 3 years, another 50-60% is gone. So, I always try to buy kit that's more than about 3Y old, because that's when it becomes cost-effective.

When you pay 10% of the new price, that means you are getting at least 10x the price:performance ratio. It's almost impossible to buy anything new that is 10x faster than something ~3 years old and it has been for 20-25 years or more now.