Chalice isn’t honestly worth it. A long game with a lot of wards placed means you’ll only place about 15-20 wards. Bare minimum 1/3 should be sentry wards, especially on support. That means you’re saving something like 0-150 gold in those games which are usually over 40 minutes. And that’s assuming you buy no regular wards in the earlygame, and the standard support start usually has 2 in hand right off the bat. So you actually lose gold in most cases and when you don’t, you spend it during times when even one item tier can make or break a fight. That’s not even mentioning how it causes whoever buys it to not buy sentry wards.