Originally Posted by IIIII
Is it carbon? Or maybe Titanium since there's no paint that can chip off? Then again carbon is seen as ultra trick nowadays. But some say steel is real? Then again aluminum can be made lighter than both titanium and carbon. Which frame material holds it's value best?

Truth is none of them. They each start new at their respective price points and rapidly depreciate.
50 cents on the dollar for most only after a couple of seasons....sometimes more.
So as far as frame material is concerned, consider that you can afford and what material you like and shop accordingly. E-bay is an accurate barometer of supply and demand and therefore market value and where many including me purchase a lot of bicycle supplies including new and used framesets.
Good Luck,
George