It's called feather or Fortify Strength.
Neither of those let you carry an absurd amount of items to a store instantaneously...
Aside from that, ambient atmosphere of a place is enhanced when you cannot teleport out of harm's way. If you want to escape, nothing is preventing you from turning around and running away.
Apart from getting shot in the back with and arrow or fireball while doing so...
Besides, it's good for your Athletics skill.
Yes, but its not good for my Mysticism skill, and I usually play more of a mage - which means you cut short my roleplaying...
When an escape is that easy, it makes things boring. After all, it's much more exciting when you have to escape the more traditional way.
Says you, I find it just as exiting without having to cut short my roleplay value...