I really like the Yaris, but I do have a problem with how fast the price rises once you add some equipment. We found the Yaris sedan pricing way too close to the Corolla, and we just went for the Corolla. The Yaris 5-door hatch can get over $20K far too easily.
When Toyota priced the base Yaris, there were no $11,500 Hyundai products, and the Yaris looked like a great buy in base form. Lots of young people live with roll up windows and no AC.
One thing about the lower end of Toyota's line is the lack of service costs. We're so used to Mercedes, Subaru, BMW and yes, Honda, that I'm just shocked at how inexpensive "by the book" service is on the Corolla. The dealer tries to scam you with their own versions of the routine services by trying to sell you "inspections" but it's not in the Toyota guidelines. In the 36K we've logged in our 'Rolla, it's BY FAR the least expensive per/km car we've owned.
Try buying a Fit priced less than $19,000. My Dad's been shopping the Fit, and he's yet to see a DX on a lot, and most are LX AT models, priced at $20K flat plus taxes.