This Is Why People Get Stuck In Elo Hell
http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/1879323841/39816033?tab=overview
No one decides to upgrade their trinket, at least on my team.
There was a total of 57 wards placed and I was responsible for 34 of them, that's 59% of my team's wards. Now I understand that I am the support with a sightstone but you can't be serious.
In a 39 minute game, my top laner and mid laner sat on a yellow trinket the entire game. If they are constantly warding every 2 minutes keeping it up that would be ~19 wards placed. Instead they had 7 and 5 wards placed. People need to understand the importance of wards. It's sad to lose a game because we have 0 vision because I can't keep up with the vision game.
/endrant
tl;dr People aren't warding enough and this is why people are getting stuck in crappy elos.