User blog comment:Andrew.heo1/When to Get a 3rd GP10 Item on a Support?/@comment-3477331-20120815101245/@comment-24434281-20120815151311

That is rather true. I have experimented with 2/3 and noticed that I actually have no room for say wards or a item (e.g. a ruby cystal that I making into a Shurelia's) when I buy 3 of them.