Why on earth is there a lockpicking skill tree?
Since the beginning of the game i have been able to pick every single lock on every single one of my characters without problem, except the odd broken lock pick.
I miss the old lockpick engine, at least you had to concentrate and work at it, now it's just twiddle twiddle click!

Not everyone's as good as you?
My lockpicking is somewhere in the 40's. I still break a pick or two on the lv2 and 3 (Apprentice and Adept?) locks, and up to half a dozen on Expert. I generally don't bother yet with Master.
(Of course, I also svcked at the Oblivion minigame, and built up my skill there too. And got the unbreakable pick.)
edit: that said, I've had more important places to put my perks. I'll eventually put a few more in picking, if only to grab some of the interesting side perks.