I start almost every game as support with a stealth ward and mana potions. I have to play safer, but I can use my skills more often and have full river vision up till 4'30". This is a meaningful, strategic choice. You know, the type of thing they are always talking about when making item changes.
I am very unhappy about being forced to buy "the same thing as everybody else".
I start 2 wards and a gold generating item. That gives me six minutes of safe farming and engaging, which fits my playstyle, and gold quint pages mean I can afford a sightstone and usually some mana regen/potions by the time my first two wards run out on the first back.
The river vision is what I worry about. This change essentially means I'll have to rely on my adc to help me ward, and in my ELO, I don't trust them to use their wards smartly.
I wish they'd stop changing warding to shift the responsibility to the entire team. Everyone in LCS might upgrade their trinkets and spam wards, but in my experience, I have to BEG teammates to use their FREE wards.