This can't seriously be surprising for anybody, youtube with its on-demand unlimited video storage and streaming has to be one of the biggest money sinks on the internet.
This kind of pisses me off whenever people complain about YouTube pushing ads or charging money. It's absolutely insane how much storage and bandwidth the amount of video hosted and uploaded every second requires. How could it possibly free?!
Bundled with YouTube Music it's even extremely good value.
Spotify premium costs USD15.36 in my country.
YouTube premium, including YouTube music USD19.58.
That's USD4.23 for no ads where I watch the most videos. Absolute no brainer in my opinion.