Exhaust Question

I am about to purchase a Cat back exhaust, but I dont know which one to get. I was originally going to purchase the Apex'i World Sport after reading all the good reviews here on AF.com, but I went to all the local shops in Chicago and the best price I found was $450. Is that a good price? The next problem is, today I went to a store and they didn't sell the WS, but they recommended a DC (can't remember the model) that was all stainless pipes for $560, or the Apex'i N1 for $520. Should I spend the extra $ and get the stainless, will the N1 or WS rust out? Is there a perfomace issue with any of these?

Thanks for the help.

Go DC! I have DC sports and it is great! I was thinking the same thing as you, I was looking at the ES, but then I figured to go and buy the DC Catback because it was all stainless! Plus, DC Sports makes some VERY good stuff! They got the regular Catback, and they also have the TCS model. I was limited to the Regular one because they dont make them for my car, but I have to say, that if I was to buy a muffler again today, I wouldnt have gone any other way! Thats just my opinion!