Anything with a high PR but little traffic, could have tons of traffic if optimized properly... (and if there is a market for what it "leans towards").
On the other hand, anything with a low PR but tons of traffic, obviously has a market (or several) cornered "naturally" and would *take over completely* with more PR.
Someone should send me a grand for posting this publicly...
This is just pretty common sense once a few of the most fundamental pieces are understood,
it's what You do with this info or not that either gets You movin', or not ...
