If a tgp displays more then 1 link per category (they all do) it looks very lame if you use the same link.
Once the surfer figures out they just click 1 link and it keeps spitting out new galleries they will click it on it awhile.
Now tomorrow comes and they have already seen half the links.
Where is the update?
I don't want to knock your idea but no serious tgp owner would use a gallery pool that is based on a random link.