It might feel like retro cables should be the cheapest part of a console setup, but oh boy, that's no longer the case. That's not to say you won't still see cheap wires at the usual online storefronts, but I'm finding that many of the once serviceable composite and SCART options will produce poor visuals at best and, in the worst-case scenarios, break your pricey old consoles.
If you're trying to figure out how to connect retro consoles to your modern TV or monitor, you've probably already looked at a few cables for your chosen system. While that will lead many of you to buy all-in-one HDMI adapters that connect straight to old proprietary ports once used by Nintendo, Sega, Sony, or a number of other brands, standalone upscalers require wires that conform to a traditional input standard, and low-quality options can cause a ruckus.