Indeed. I actually prefer the
Indeed. I actually prefer the all black version. Makes him seem more menacing as he can easily disappear into shadows or whatnot. I'm not sure they never thought or attempted that at any point in the series. Instead of hiding him, like less is more, they had him full out, front and center. I imagine that's part of the reason Sir Lee had had enough of it after a few years...

I've actually thought about
I've actually thought about this. My theory, and it's just a theory/opinion, is that Dracula became increasingly more animalistic as the movies went on. He didn't really gain the blood-red eyes until after the first movie. So perhaps the cape was changed from a regal all-black to a more blood-red an black in an effort to show his bloodlust more? Or maybe it's just because it's more colorful and closer to Bela Lugosi's? Just my two cents...