When i play Support, i like to start Refillable potion + Gold income item.
And if 
's cost gets increased to 400, starting with Refillable potion will just be impossible.
These are screenshots from the latest Surrender@20 PBE update post. Basically, another indirect nerf to supports. Because we all know how dominant and broken they currently are.
[sg-lux-2]
Refillable potion is in no way broken and there is no reason why we, the Support players should now basically be forced to buy 2 Health potions at the start at all times. I, personally, only buy Health potions when i'm starting with a Doran item, since Refillable is unaffordable. But i generally hate the idea of basically drinking my 50 Gold away, which is why Refillable potion is superior in every way.
In conclusion, the Gold cost increase of the main 3 Gold income items in unnecesssary and it does nothing but hurt some of the Support players and promote a homogenous one-sided item start.
Riot, i advise you reconsider this change.

. I drop the ward in the invasion bush (at 1:25 - I use a trinket ward for the actual invasion prevention). It's basically a "get out of one gank free" card for both mid and bot, plus a guarantee that our jungler will have the chance to fight for scuttle, if he so chooses.
I'm already sacrificing two health pots to do this. This change goes through and i'll have to sacrifice all health pots unless I want to give up on doing anything to support mid and jg in the early game.