You all forgot the "survivor" class.
Some cars are nice, just the way they are, and that is starting to gain a lot of momentum in the market. My '70 is an example of such a car - clean, solid, original, unrestored, numbers match engine, with only maintenance work done to it over the years (belts, hoses, radiator, condenser, tires, brakes, etc). Original sheetmetal with semi-original ("day 2") paint - it must have been in some sort of accident way back when, because it wears a coat (full car) of not-quite-F4 light green single-stage lacquer, and has almost a dozen finger smudges on the driver door jamb in different shades of green where they were obviously trying to match the paint. My guess? Trying to paint one panel for the repair (all panels are original so it must have been fixed, not replaced - my guess is driver quarter panel, due to the fact my magnet found about 8" square of mud right over the wheel), couldn't match it, so they sprayed the whole car. Including some trim. But, that was when it was just "a car" and people were just...driving them. There's a sticker on the fan shroud from a trans shop, I'm guessing the 904 was rebuilt at some point (or replaced; I haven't checked for a VIN on that like I did on the block). It has goofy, black-tape style door molding on both sides that hide the body line (from back in the day), and it has what appears to be a dealer-add vinyl top with the Charger emblems in the wrong place and the wrong border trim...but it's as "original" as it could be, obviously not something recently added, and it contributes to the "story" of the car. I have the original customer's order, showing they wanted a vinyl top car; I have the original bill of sale for THIS car. I can only assume they got this car in, showed the customer, said "we can add a top", and the customer said "OK". It's a "real" car; it has a great "story"; nothing has been "restored" (although I did replace the drivers floors due to rust); all that originality still shines brightly and speaks volumes.
Its a 318/2v car; 904; 2.73(?) open rear. Factory a/c. 14" wheels with full wheel covers, and 4 wheel (non-power) drum brakes. It won't get a hemi. It won't get a 4 speed (or 5, or 6). It won't get a hellephant motor. I might convert it to power front discs, just for safety's sake...but I don't want to lose the 14's and wheel covers, so that's down the list right now. It has scratches. It has nicks. It has stains in the paint. It has dings up and down both sides. The carpet is faded.
I don't care.
It's REAL, it's fun to DRIVE, and the moment it's restored...it loses all of that. I'm simply going to treat it as a clean, solid, old car - and continue to enjoy driving it whenever the hell I want.
My '91 Daytona turbo is in the same boat. It's a one-owner car that I bought brand new, everything is original except the exhaust, and the Mopar Performance lowering springs I put on in '93 (and tires, brakes, hoses, belts, etc). Being 19, I didn't have the foresight to keep the window sticker or the bill of sale...but I have the original 13-mile title and most of my maintenance records. It's clean. It's solid. It has a couple scars from past battles and warranty work...but it, also, is unrestored - and will remain so as long as I have it. And it, also, is a car I simply love to drive - and feel no guilt about doing so.