Of the regular production toys in its day Fortress Maximus was the most expensive. But like most collectibles, the condition will affect the value, original box, unopened, etc. The Piranacon set pretty rare and demand a high value today, and special editions like the Japanese Lucky Draw Galaxy Convoy are much coveted.
The most valueable transformer toy for this generation is "JETFIRE and OPTIMUS PRIME COMBINE.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.