Thanks for the idea of contacting PoolSkim directly. I did so, and the price ended up being $75 plus $15 for shippping, for a total of $90.
My pool is set up such that 4 returns go into the pool and a fifth return, on the tailend of the return line, goes to the spa. For various reasons (farthest away from steps and debris seems to collect there), I wanted to attach the PoolSkim to the fourth pool return fitting, which is the last pool return before the return goes to the spa. This didn't work because when I removed the eyeball fitting and attached the PoolSkim, this removed too much backpressure and ended up starving all of the water from the spa return line. Literally the spa return line went completely dry.
So I ended up attaching the PoolSkim to the first pool return. I am probably a complete geek, but this gadget is too cool in action. The amount of suction created by this little gadget is incredible. And watching it work from underwater is cool too in that the PoolSkim looks like a mini vortex or tornado in action.
The pool was pretty clean from debris (unusual, unfortunately) so I tossed a small handful of pine needles (my main pool debris) near the PoolSkim. Dang it if the darn thing didn't grab 99% of the debris within a minute or so. Very impressive. It appears to do a better job of cleaning up debris than the "real" skimmer.
Hopefully I will know in a day or so how much additional debris it will remove from the pool under real world conditions. So far, I am optimistic that the PoolSkim will dramatically reduce my netting labor.
One concern that I have is that my two little monkeys are going to damage this thing while they are in the pool playing. Does anyone routinely remove their PoolSkim from the pool while the pool is in use?