When are they going to be worth any serious money?
Nice ones can bring $15,000 but they have to be pretty nice. Let's face it - very few of these are receiving body off restorations. I do not know of any, but am not tuned into those who might have done one.
Is it always necessary to be able to "profit" off a car? Is that the intent of the hobby after all -
to make money?
These cars are uber complicated so we are at a crossroads more or less in how they are preserved for the future. Nice originals - in good collector hands - will probably not rack up many more miles in the next 30-40 years.
Those that drop off that map will likely be crushed, parted or remain in a nether world of not restored but not fundementally useful to a collector as a hobby car.
The old adage buy the best car you can really applies to this generation of Eldorado. Too expensive to consider restoring versus market value. Most everyone I know agrees these cars are easy on the eyes but when it comes to long term ownership, some collectors hesitate.