I like going against Evelynn jungle when I play support
Because I don't have to rush sightstone first
Because I don't have to rush sightstone first
: Enemies are missing
: Enemies are missing
: Enemies are missing
: Enemies are missing
ENEMY DOUBLE KILL! 
: Nice sightstone janna...
: Nice MIA ahri..
: ....
(meanwhile top lane)
: /all HOW DO YOU ALWAYS KNOW I'M HERE?
: /all I ward river with yellow trinket and see you do scuttle
: /all wow... I should probably go bot where the support doesn't ward..
AN ENEMY IS UNSTOPPABLE!
Your turret has been destroyed!
: /all nvm she got it.
I still buy a control ward and use trinket to keep the river warded. It's just unnecessary to rush a sightstone.
Sightstone is still useful to ward your lane bushes vs your enemy laners, ward river from mid, and actually warding gromp or wolves is actually useful. It might not always let you know where she is, but it isn't uncommon for her to clear those out before a gank, so it can at least let you know shes bot side, and you should play back
If you're playing safe and watching the map, you don't have to rush sightstone first anyway. Especially in lower ELO. The only exception I'd make to this--if I don't intend to rush it that is--is with a Xin or Hecarim jg when on blue side since they like to rush you from your turret.