This. I think knives have a pretty steep curve of diminishing returns once you get around $500, at that point you're almost certainly paying for brand / premium materials / ad copy / rarity, more than any sort of actual performance. I'll eventually drop current market value for another Murray Carter, but will do so knowing full well that the performance increase I see will be negligible relative to the price increase.
Unlike watches, the real ROI comes with actually improving as a user of the product. The better you are with using your knives, the more you'll get out of them.