Absolutely. The direct comparisons between such different tools are always tough for me to swallow, though.There are other domestic V8 choices that perform far beyond the STI, either at the track or the strip. These can be configured to cost less than a STI.
Are there options that perform better? Sure! What if I wanted a 4 door? What if I wanted 4 driven wheels? What if I wanted something that fares well in Autocross?
Also, we have to define "performs better." The 6G Camaro is a great turn-key solution that you can drive to and from the track. They tend to be not-so-great on the Autocross course... I believe they might even be classed in G-Street.