Good question, but I have a good answer: you need to understand the amount of consumer surplus of each product. If a wallet cost $50k, you wouldn’t buy it, you’d shove your credit cards in your pants pocket or find a workaround. But if a monitor cost $100k, you or your company would simply buy it and get on with your life - assuming you’re a professional programmer. Monitors have a ridiculous amount of consumer surplus. Once you accept that a monitor is worth $100k of consumer surplus, it’s more intuitive that a 10% noticeably better monitor can have 10% more consumer surplus, regardless of the low market price.

And yes, strong vision correction is also potentially worth $250k if you make a programmer’s salary and that’s the only way you can work. It’s just important to operationalize “10% better” as a measure of how much it helps your output. If your productivity increases 10%, it’s worth an additional $25k cost.

One more example: Imagine McDonald’s Big Mac Value Meals cost $1 each and every other meal cost $50. Assuming you make a $100k+ salary, I think you should opt for the $50 meals quite often, even though most of the country is eating Big Macs and thinking you must be crazy.