Heck no! We have been thrilled with our TCH, gets better mpg than I ever expected and it fits a different purpose from a Prius. We'll have both when I buy a Prius...
Sort of. I traded my TCH for a HH and then bought a 2010 Prius for a daily driver when they were available.
I traded an '07 Camry Hybrid for an '08 Highlander Hybrid Limited. Most of the time I owned it, the HiHy had an electronic power steering problem that, unbeknownst to me, prevented it from getting anywhere near its EPA ratings. When it threw an error message, I got it fixed under warranty. I traded it for the Prius, and since it's a hatchback it gives me the flexibility of the HiHy with much better mpg's.