That's true. Although I think we can agree that the Terran designs remained pretty much the same, and the zerg... well, they turned even more disgusting and therefore terrifying in my eyes.
I think what I best admire in the "new" protoss is perhaps the fact that they kick ass and be all war-like while being "faaaaaaabulous" in their designs.
I don't know it, really appeals to me.
The old protoss structures and vehicles reminded me more of Lego block buildings and crude toys, than actual works of art and purpose.