Honestly I love it. I don't typically rewatch things often enough to justify the price they charge to purchase a copy, and I have a shitload of stuff at my fingertips with streaming services.
With music it's a little different by because I do re-listen a lot, but streaming lets me just listen to music I might like instead of relying on reviews to guess what might be worth buying. I listen to way more different things than I would if I had to buy it all.
They sell ads, but data. If you can't see the difference I can't help you. It's not "pedantic", it's being factual. Sorry you apparently think facts don't matter.