I found the same thing. I looked for a year in shelters in MD, PA, VA and further. A small chi (under 7 lb.) was rare and they were always snapped up right away. (A GOOD THING!) I guess people here love their chis. We ended up adopting from Miami. I plan for my next to be a pup from a breeder, but then, another chi may need me.
He prayeth best, who loveth best, all creatures great and small.