That plant in the pic is so fucked that it would be out in my compost heap in no time flat.
No way. Its gonna give me about 20-30g. 20-30g compared to 0g in an empty space is a no brainer...

I'm actually thinking it might simply have had some insect problem. On closer inspection, Im seeing what may be some faint traces of web under a couple of the leaves. I've never had insect probs though, so Im not sure what that is.
Anyway, the whole harvest is going down in about 10 days, so I'm not really worried.