Phal. issue - cell collapse?

[Cactusblossom]

I rescued my 7th orchid yesterday from the sale rack at my local grocery store. In my excitement of the color of its remaining flowers, I didn't spend a lot of time looking at the plant itself. Now at home, I noticed that the top leaves were cut off at some point and the other leaves have some discoloration around the edges, and from below look much worse.
The roots look wonderful, and it has started creating new flower stakes from the existing ones.
Any idea if the leaves are effected by mesophyll cell collapse or something else?