User blog comment:Emptylord/Season 3 - PBE Patch Notes/@comment-112.198.90.34-20121125120139/@comment-4909453-20121125194158

Sightstone is best to get early as possible for a view of mine. You can say it's nearly equavlaent to 9 wards, but in the long run of the game, you're going to be recharging more than 9 wards if you go back 5 times which is nearly normal for supports. But if you're saying just for the instant of the cost, yes.