Corvette always has been and always will be the best bang for the buck whether buying new or used. Just a matter of economics and how GM structures the vehicle as well as numbers sold.
Fact of the matter is, not every one wants a corvette.
I've wanted a Gallardo for a few years now, and hope to get one in the next few. My kids know this and when we went to the Corvette museum in Kentucky, my son (10 at the time) was drooling ove a brand new yellow C7. It was beautiful. He say, "Dad, is the Gallardo faster than this?" I replied, "no" he then asks, is this more expensive than a Gallardo?" I again reply, "no" so then he asks "then why do you want a Gallardo??" I explained that I've wanted a Lamborghini forever and to me it is one of the most beautiful cars on the road. The Corvette just doesn't do it for me. Great cars by any measure, just not what I want.
So much emotion goes into car ownership that logic often goes to the wayside. I don't think this will effect sales any more than the Corvette ever has. They will sell a ton of them and there will be 5-1 to porsche on the road and 100-1 to Lambo's and Ferrari's, just like they are now.
Also...the rear end sucks. lol.
2010 Lotus Exige S240
2001 BMW M5
2017 Ford Raptor
2018 Jeep Grand Cherokee Trackhawk (wife-mobile)