I hear you, before I even pressed "post reply" I knew perhaps I came off too much like "I want people to know I spent the big $$$$" when that isn't exactly what I mean, so I regret how it sounded. I know what you are saying about a slightly deeper and more textured look than space gray aluminum but I think the color is so close and the texture so hard to see beyond a foot or two it would be indistinguishable, I would argue, to almost anyone even avid Apple Watch users. I guess I would notice the subtle difference on my own wrist. There is nothing wrong with owning an Aluminum model (and in fact this just go to show how nice Space Gray Aluminum looks) but when I buy a premium model (I wear a SBSS S4) I not only want sapphire glass, I want a distinctive look to the case that is more rare and I just feel that Space Black Titanium just isn't distinctive enough from other very, very, very commonly purchased options (I'd argue from anecdotal evidence that Space Gray Aluminum was THE most commonly purchased option for the Series 4) to make me feel my extra money paid to make the watch unique.