Funny you should mention that. I just resoldered my DVD's PCB for the power board to bring it back from the dead. Cost me all of 5 cents worth of solder to get it to turn on again, and its been running strong ever since.
The problem with collecting things is that the most valuable things are purchased when they are new without knowing or intending it to be a collectable. I am sure that in 1969 if Camaro owners knew that their cars would go for several grand more than they paid for them, you would have seen a lot less of them sold and/or abused. Because the cars had been modified and abused and treated like a normal run of the mill car, there are few of them left. They also have a popular styling to our generation and are sought after quite a bit, which is what makes them collectable and valuable. Of course, on the other end of the spectrum there are people who feel that the 1969 Camaro is overpriced. But the point is that there are plenty of people willing to pay that much for it. These things that are marketed as collectables from the beginning rarely see a price hike, as the majority of them are still in original wrapping.
As I stated before, you have to own a car because you love it for it to be worth anything. Except for the most extreme circumstances you will always put more into the car than you will get back out of it. Gas, oil, brakes, tires do not factor into the resale value of a car as any of you already know. Just stuff to think about.