I find them far better to sell than to use. I've had way too many times where I had 5 picks, the first pick worked for 19.5 out of 20 seconds, then the next 4 picks broke almost immediately. This happens time after time, and I'm sick of it....it's frustrating, and even if it is RNG, watching RNG specifically F*** you over right at the end is annoying and frustrating, and annoying and frustrating isn't fun.
Not to mention it's in perception. Perception already has explosives (which I imagine continue to go unused by most), but more importantly, it has the salvage operations skill, which dramatically boosts wrench damage and yield, so your wrench is doing high-end pick damage to safes. Basically, perception already has a far more consistent skill for safe cracking that also gives other massive benefits.
Now if it was an agility skill...I might consider it.