Tbh the only problem are weapons
Never really bricked an armor piece 
The reason why that is the case I think it’s because Temper Weapons are made in a way that only one choice can benefit you (i.e. super high risk/reward) it’s not like 2/5, it’s 1/5
That’s why when there’s a “godly” piece of weapon I opt in for the Elemental Surge upgrade first instead (if I get another - will probably gamble stuff on the second)
I mean I’m running a really weird build, and I could easily see other people kinda doing the same… If I WAS using Spark for example I could use a Weapon double-cast temper (Spark and Charged Bolt), but I’m not, so it’s not really paying off the gamble of 1/5 (at least not at the first good 3GA weapon I get IMO)