I stand by my earlier advice that you should get on multiple lists, unless you're so high up on the list it's "a sure thing" you'll get your C8. There's nothing more frustrating to see others take delivery of their C8's when you're left out, wishing you had yours. You can always drop off a list once you've got an allocation and made your order. The only downside to being on multiple lists is the deposit (refundable) you'll likely have sitting there. As
DavidWG mentioned, there may be mid-sized dealerships with lists that aren't too long. It pays to do your homework by calling around, finding out where the list is with a dealership and deciding if it's worthwhile to get on it. I'd even suggest going out-of-province. Anyone who owns and is driving a C8 will agree that this effort is worth it. The initial interest in the C8 has increased IMO as more people see them around and talk to those who own them. Yes you'll have people drop off a list but I suspect it'll be less due to financial reasons and more because people are on multiple lists and getting an allocation elsewhere. So in other words, people who may have dropped off lists for other reasons in the past, may be fewer...since those on lists are more convinced they'll take a C8. Time will tell but why risk it when the pay-off will be so great?
Yesterday I let my friend (a dedicated "car-nut") take my Stingray for a spin. His first time in a C8. Amongst his stable of vehicles, he owns a 3-year old Porsche Turbo S that he bought new (his third 911) and he's now got another Turbo S on order. He found the C8 as much fun as driving his Turbo S but at a third of the price. Those were his words. He's now looking to get a C8 Z06.