I read recently that white plastic was the more expensive color to produce. I wanted to cite/link a source but internet search is frustratingly bad these days.
Edit: Not quite what I read but close enough.
https://moralfibres.co.uk/the-plastics-to-avoid-next-time-youre-shopping/
https://www.reddit.com/r/pcmasterrace/comments/1bxng7f/comment/kyehonz/
But that first purge feels so healthy though!