John C.,
You must be a newbie over here.... No one really disses the Z06 performance. It is the best value in sports cars, and is only a few paces behind a Viper. Now if someone comes over here and says the Z06 can match the Viper GTS performance, stock vs stock, we laugh and give them a hard time (except braking performance). At this point, we know they are living in a fantasy world and need a wake up call. This is my first point.
Point 2 - Is the additional $30,000+ more for the Vipers additional performance worth it? Arguable not. But if you have ever owned a Viper, or driven in one for an extended period, I think you would understand. It is a vastly different experience - and yes, I have owned a Corvette, as many of us have. It is very hard to put into words. The car is just an animal (especially torque), has power EVERYWHERE, in any gear, and has looks to kill. It is VERY exciting to drive, and never seems to get boring. You really feel like you are driving something special, and you are... Every where you go, ever place you visit, people want to talk to you about the Viper. Kids, adults, and grandma's go nuts over this car. You feel like a mini-celebrity. Do I need this 'feeling' to feel secure? H*ll no, anyone with money can buy anything they want. That does not make you a good person. BUT it sure is fun at times. The exclusivity is also a big bonus, as I have only seen a couple Vipers in a 10 year period. It is a very unique experience, to put it simply. Is this worth the additional $30,000+? It is to us...
Hope this helps...