I would love to purchase a large collection bands, but leery thinking Apple is going to change up the watch in upcoming releases. Wouldn't mind owning the SS link, Leather, along with several sports band colors. I own the Milanese band now, but that SS link sets ya back around $450
Watch 2 or 3. But I figure they'll probably keep the design for a few generations. I also have a white sport strap on order. Not sure if I'll buy any others. I wouldn't mind a leather band, but may try a 3rd party band to see how it is. Or get an adapter like the Click and use any regular watch band.