of course, bying an other car hardly saves money.
i have some remarks to make.
here in europe the epa of hybrid car is not the same as for non hybrids. due to the rules the epa is a little better and so harder to reach in the real world. maybe you will not get the same 113%.
on the other hand, u can calculate the repair costs at the minimum, u can imagine. my prius has done 190.000km with the stock set of brakes now, and the end isn´t in sight. every 15.000km some engine oil (3,2l) thats it, almost exactly.
however, if you go for it, you will expirience a whole new kind of driving and you will never ever want to change it back. other cars are simply yesterday...