Base Mana/Health Regen should be displayed on items in your inventory.
Currently, Mana/Health regen displays on items like this: http://i.imgur.com/r22Qh0P.png
However in the shop they display like this: http://i.imgur.com/V7v9M0i.png
I find it tedious that I have to open up the shop in order to see the mana/health regen the item is giving me when I already have it purchased. I think that it would be very useful if the item displayed the exact mana/health given per 5 while in the inventory as well. http://i.imgur.com/Pp6hOGA.png