Originally Posted by trilobite:
“Agreed. The controls would surely be more obscure, touch-sensitive; even telepathic. Not bath taps and typewriter. I really detest the designers for being so bloody stupid!”
As the Tardis is the last in existence, and Gallifrey is gone, it would make sense that when the Tardis needs to self-repair or regenerate itself it would make use of anything collected by the Doctor that would work for certain functions where the original mechanism was unusable (much like the situation in 'Girl in the Fireplace').
And because you are most familiar with human artifacts you would logically notice these more - they would stand out more - than anything that was not of that source. If you really study the new console, there is more on there that is not an Earth antique/artifact than otherwise, but your eye is drawn to the most familiar items.
Also, the Doctors attraction to Earth and its history would probably, after God knows how long travelling, lead to his having collected far more Earth artifacts than alien (much like his 'collection' of companions, most of whom have been human)