Let's do some math here.
Using the Prius's 50 MPG combined figure, lets assume you drive 12,000 miles a year. At 50 MPG, that's 240 gallons consumed.
The Fiesta (with SFE package) gets 34 MPG combined. At 12,000 miles a year, that's 352 gallons. The Fiesta uses 112 gallons more, and at a price of $3.50/gallon (current price around here), that's $392 over a year. That is significant, I will give you that.
Now, here comes the fun part. The Fiesta (configured with the SFE package for 34 MPG) is $17,185. The Prius is $24,200. Difference of $7,015. So, the only way the Prius saves you money in the long run is if you plan on keeping the car almost 18 years. And that is not taking into account the cost of a battery replacement if one is necessary during that time. If you plan on keeping your car 18 years, then go for the Prius. But since hardly anyone keeps a car for that long, you're better off with a Fiesta or one of the many other non-hybrid cars in its price range.
And of course the most important thing with the Fiesta is you'll still have your dignity in tact when you buy one.
At 12,000 per year of course no hybrid is worth it, but that's pretty low miles per year. Let's do the math with an extreme case such as mine but probably more realistic if you are looking at a hybrid. I drive 160 miles per day, that's 41,600 miles per year.
Prius:
At 50 MPG, that's 832 gallons consumed. $2,912/year @ $3.50/per gallon
Fiesta:
At 34 MPG, that's 1,223 gallons consumed. $4,282 @ $3.50/per gallon
A difference of $1,370/year. Payoff for a Prius is then 5.1 years.
How many miles you are planning on driving matters a lot, for 12,000 miles/year this isn't even worth discussing. Like I have stated in my posts the hybrid is not for everyone, if you are concerned about looks then don't get a hybrid. Other people are more practical and/or have two cars, like I do (neither one is a hybrid, BTW).
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The Prius main benefits are in city driving. If you do long trips on the interstate, then the extra weight of the electric engine actually lowers your mpg. At highway speed, the electric engine isn't running, except when you need an extra boost to maintain speed up a slope. That's a few hundred pounds of dead weight.
If you're stuck in bumper to bumper traffic during a hour long, 15 mile commute (welcome to my world

), the hybrid spanks the pants off anything except a pure electric.
I was in the market for a Prius a few years back. The dealer wanted $4K above sticker price. I ended up getting a Civic instead. The $12K price difference took a lot of the sting out of those trips to the pump.
A Prius still gets 45-50 MPG on the highway "dead-weight" and all. $12k premium for a hybrid is ridiculous but that's probably when gas was $4/gallon, right?
Frankly I don't know why I'm defending the Prius so much, I used to own one that I got used for a good price. I'm just trying to be fair and there's a lot of misinformation on this thread regarding it.
For the OP, I don't think you can find a Prius at that price range, I would definitely would not get any hybrid with more than 150k miles on it as the main battery may have to be replaced soon but YMMV, literally.