Hmm so,
different looks,
different racial skills,
different resistence to certain things,
different abilities,
different starting statts,
different way of speaking (npc),
different background,
isnt enough?
What do you want them to do more?
Different racial skills are resistence to certain things.
The abilities are hardly ever used - the active ones are either useless or not needed most of the time
The starting stats make absolutely no difference, my orc can be a better archer than a wood elf in about 15 minutes.
The different way of speaking is purely cosmetic, as are the looks. The background doesn't change anything at all - that wood elf could've been raised in the imperial city for all you know.
If I loaded up a character in full plate armour at level 81, unless they had a tail sticking out you wouldn't be able to tell what type of character they are - racial abilities, I guess, but they're useless by level 15.