The new cables means your cables aren't backwards compatible though - one day you need to plug in a display port cable to someone's desktop/old laptop and you d

The new cables means your cables aren't backwards compatible though - one day you need to plug in a display port cable to someone's desktop/old laptop and you don't have the cable on you, because you replaced it to avoid dongles. Dongles are both cheaper and more flexible than replacing the cable, at the cost of having a slightly shittier experience.