Chrome sticks to aluminum, but just barely. It has a tendency to flake after a while. But it still looks great. You also can't chrome anything that's Stainless Steel. It just won't stick.
You just can't mix polished parts with chromed parts because the finishes will clash. They're actually different colors. If you want a lot of pieces to shine, it gets crazy expensive. I know someone who just had all his chrome redone on a '53 Ford, and it cost him $5660 to do the whole car.
Chrome is a lot more durable than polished finishes, though. You're right.
Dude. I've been wanting to tell you. Your avatar kills me. Did you make that?