Not so good with the ID. Little help?

I found this thing at a plant store and it looked awfully familiar, but before I start hacking the poor thing up and eating it I was wondering if I could get some help in identifying it.

 

nothing active thats for sure. its definitely not a trich, therefore its no good for tripping. ive seen those in the nursery before. they are blue just like peruvian torches and have long spines but they are tiny. a real trichocereus needs a much bigger pot and grows much bigger. i think it's a toothpick cactus or something along those lines, a pilosocereus. a beautiful blue little buddy.... give it a nice spot in the window, not your belly.

 

She's a beauty though. I love how blue it is.

I wish nurseries would properly label everything.

 

home depot and other nurseries have mislabeled cacti all the time, so i can see why most places don't even bother labeling them. its a clusterfuck of an ID system really; so much confusion.and i used to think mushroom identification was sketchy...

 

Yea, that makes a lot of sense. I've heard of lots of cactus, in particular, being mislabeled from time to time. Lame.

 

Thanks guys. This little dude will chill in the dorm for the time being, then.