I agree with cts900, I don't follow trends either. I tend to buy what I like, if they go out of style next year, it doesn't matter, as long as you still like. I would wear it 10 years from now as long I am comfortable with them and they fit properly.
I would not use the word classic, but perhaps "timeless." I don't think that any glittery item could be considered classic; however, I don't see glitter shoes being completely out. If nothing else, they are amazing for the holidays!