I've only seen a few Vipers in the Detroit area (about 10 since I moved here a year ago), but $80K Jags, Benzs, and BMWs are flooding the roadways.
So, not common at all, but not as expensive/exotic (and thus the more lukewarm reception) as they are in say, Kalamazoo.
Speaking of expensive, do you know that almost everyone who has guessed at the cost thinks they still run $50K?
Let's see, it's evolved, gotten a hard top, roll up windows, A/C, etc.. and they still think it's the same price it was 10 years ago.
Why doesn't anyone stop to think: "If they only cost what a vette costs, why are there so few around?"
Some people...