With the changes that have come to fuel regulations, ethanol "quota's", and all...wasn't a lot of that kind of thing birthed years ago with the move to unleaded gasoline? I'll have to admit, I am still pretty young compared to most on this site...the move to unleaded started before I was born.
Most of the changes in laws that are supposed to affect the current emissions requirements have a trickle down effect to discouraging us from keeping our vehicles on the road. Most of the time our hobby is not considered, and unfortunately Big Brother doesn't usually consider all of the jobs/industry/income behind it. Check the major hot rod mags and the ranting and raving from the editors about the state of California lately. Even the registration and titleing of cars has gotten pretty ridiculous evidently.
Hate to be a pessimist, but in a few generations (after we are dead and gone) there may be a push to get all of our old "carbon cars" off the roads and into museums. But then, within a few generations all of that may be a moot point. How many of our own great grandchildren and their children will want to run these cars and do what we do with our spare time? I would hope quite a few...but who knows? Take a look at the "green" cars and vehicles that are being pushed at the moment. These types of cars, or at least their concepts, are gaining momentum. Our gasoline will continue to change I am afraid. Hopefully we can see it happen slowly with a lot of red tape.
About the comment concerning our grandchildren and children, the government, whether Bush or Obama, should have thought about our offsprings' future a long time ago when we started throwing around all of this borrowed money again. The current administration continues to pile it on with extended bailout and government sponsored healthcare. Our offspring will be paying for a long time to come no matter what.
About Daniel Tinder's original post, I always use an Octane/stabilizing supplement in my Y blocks, even after purchasing the 92 or 93 octane fuels. They seem to run fine, and the internals look good, but then I haven't really had them running long enough to gauge any differences on seals, carbs, gas tanks, etc. Hopefully as the gasoline continues to change, entrepreneurs and companies out there will come up with even more solutions and additives to offset. I would think that the industry is still quite large enough to support manufacture of some type of product. Hard to talk about the issue of the fuel problem without mentioning anything about the government....
Daniel JessupLancaster, California
aka "The Hot Rod Reverend" 
check out the 1955 Ford Fairlane build at www.hotrodreverend.com