Civic Si has the 160hp Acura RSX engine, and the new Si for '06 will have the 200hp version of the same block from the RSX Type-S. The Si retails for $20k. But I bought an '02 with 13k miles for $11,500. Can't beat that deal.
Point is, its hard to find 160 hp for $15k. And the TC comes fully loaded with a reliable and strong toyota engine. And I personally think it looks great. Hard to find better factory rims anywhere. Its a great buy.