if you charge me $1000 per month rent and suddenly increase it to $1500 per month I will be pissed.
if you charged me $2000 per month rent and kept it the same, I wouldn't mind paying for it.
Youtube started out as free. Now, suddenly they expect me to pay for premium, I will not be happy paying for it.
On the other hand, I have no problem paying $15 per month on Netflix.