Being unable to buy normal stealth wards really hurts the splitpush/tp playstyle

Seriously, when I'm ahead and want to create pressure, I want to drop some deep wards to ensure I don't get surprise ambushed by the enemy coming to stop me. Back in the day, all I needed to do was spend 75 gold on a stealth ward

Now? The trinket still charges as usual which is good, but when I need to drop a bunch of wards in-between charge times I'm basically a sitting duck hoping and praying the enemy won't 1v5 gank me while I'm shoving down a tower