Some of the ones you mention haven't been doing that bad,...

Some of the ones you mention haven't been doing that bad, actually. The Australian dollar gold price really only took off around 6 months ago, and has gone up about 35% since then. In the same period:
SBM: up 69%
DOM: up 65%
RSG: up 57%
NCM: up 49%
TRY: up 46%
SGX: up 34%
LGL: up 25%
KCN 0%
OGC: down 33%

not too shabby, except for the last 2, and they may have their day yet.