Toyota Prius (Prii?) are hard to find. There are currently no new Prius models on the lots of any Toyota dealer in our area (East Tennessee).
Toyota can't make them fast enough. From the Detroit Free Press
Toyota has also struggled this year to produce enough small cars and Prius hybrids to keep up with customer demand. Sales of the Prius, Toyota’s best selling hybrid, declined 8% in July to 14,785.
Batteries are the critical path. From FTD.de
Waiting lists for Priuses have expanded sharply as demand outstrips the Japanese carmaker's capacity to build the petrol-electric hybrid vehicles. Toyota - normally a paragon of supply-chain management - admits to "bottlenecks", particularly in batteries, which have slowed turnover even as drivers clamour for more fuel-efficient cars.
This has created a hot market for used Prius:
According to data released by the Power Information Network, the average used Prius with 8,000 miles on the odometer is selling for $1,300 over the suggested retail price of a new one. What’s more, even a Prius with 22,000 miles sells for just $276 less than a brand new one.
Glad we got ours last year, just in time to get the tax credit (which has now expired):

(Sorry, ours is not for sale.)