Is Legacy content/backwards compatibility important for a console's success?

[AJNShelton]

The_Liquid_Laser said:

SKMBlake said:

Have you ever played to Super Mario All Stars ? Cause besides the graphics, the physics or the music is completely different.

Sounds like the same melody to me.  It doesn't matter that they recorded it again.

So when you hear this

Does suddenly make the game turn into Super Mario 64 ?