Cane vs. plastic.
OK, we can all see the potential advantages of a humidity and temperature stable material.
HOWEVER...
There aer some glaring ommissions here that I feel need to be pointed out. All the difficulties one might have with cane reeds and their construction would NOT be limited to cane alone. You'll still need to find the perfect staple design (out of synthetic brass I imagine), sand the inner radius correctly, tie it properly to said staple, and figure out how on earth to control a scrape with a slippery material.
And in the end, any quality plastic or poly will likely cost more due to it's involved manufacture. I'd rather go hack down some good ol' arundo and spare the neighbors around having to look at this "weed" - while at the same time making some great reeds.
I wonder what sort of color you'll find in the tone of a plastic reed?
). 
