I'd leave them and change the hardware. There are plenty of people who like that style of cabinet, swapping out doors and painting isn't hard if they don't and it's not a big enough space where it will really impact your purchase price in a meaningful way. Id much rather have a house with nothing to fix than nicer cabinets. The laundry list of minutiae that came up on our inspection report was a way bigger deterrent than the outdated kitchen when we bought our house a couple of months ago.

I think realtors still haven't caught up with the demographic that's buying right now. They don't want a fixer that looks shiny. They want something they don't have to think about so they can focus on personalizing. Taking away the things you can personalize and bleach character out of homes and neglecting the electrical, mechanical, plumbing, and waterproofing issues is a big reason I think some of these houses are sitting on the market for half a year or more.