I can't believe this bull...
I'd rather have a cake Skoda Fabia than a bracken Toyota Prius:
but they don't get this gas mileage

just because some people want efficiency for their daily driver doesn't mean they are going to burn down the race tracks.
I generally agree with you - I'm a fan of economical cars, but in the UK at least there are many,
many cars that get even better mileage and are both quicker and more fun to drive than the Prius. Something like a diesel Honda Civic does 65mpg extra urban (i.e. "highway") - basically the same as a Prius. Yet the Civic has a 20mph higher top-end, and gets to 60 in 2 seconds less. Being a turbo-diesel, it's in-gear acceleration is pretty good too. Not only that, it costs about £2000 less to buy, has a bigger fuel tank (i.e. better range), more luggage space, and weighs 50kg less. For all the Prius's money saving credentials too, it's only one road tax band lower than the Civic.
The final stake through the Prius's heart in the UK is that for the eco-conscious, the Civic is entirely built in Swindon (i.e. in the UK) so it hasn't had to travel once around the world to be built and shipped to the consumer. And even then, you could pick a VW Golf, not made in the UK, and with similar figures to the Civic that would be more environmentally friendly to run, and probably
still cheaper than the Prius.
In the UK at least, it's an absolute no-brainer, which makes it all the more confusing as to why people buy the Prius.