I guess I am not alone in trading a C5 for an NSX. My wife thought I was crazy, but she likes the NSX better too. I had a BMW 850, which for want of more sporting performance I traded for a new 2000 C5, which I dorve off the showroom floor. It was loaded. I have had 7 other Vettes so I thought I knew what I was getting. But after driving the BMW and getting used to quality in lots of ways, I did not like the C5. So I traded even for a 91 NSX with 25,000 miles. I have compliments from everyone who sees it that it looks brand new, even underneath, under the hood, engine compartment, etc. I am very happy with the car although I regret the lost money. I don't know how I could have foreseen that I would dislike the C5 so much.
So, trade the car in. It won't be cheaper later so you might as well get what you enjoy. I looked at it like the mistake was made, but I don't have to live with it.
bill