Exotic yes. If there was a Ti SR-1 in M390 I'd buy it in a heartbeat. However, in use you'll find that the single piece handle doesn't really add much so far as function goes. One piece aluminum also doesn't speak to me quite as loudly. And as someone who lives in a humid environment and also cuts food with my knives(not always having an opportunity to properly clean it immediately after), I despise non-stainless steels and find that the Sleipner steel and D2 simply doesn't cut it for me.
Elmax by itself will outcut both and has similar or better corrosion resistance than S30V. And if the reports are true, Elmax is tougher than all three of the above mentioned steels. That alone sells the 0561 to me. Function-wise, the 0561 will be more appealing. If you're going for the uniqueness angle, I'd suggest the titanium SR-1.
As someone who bought knives for the looks, I can tell you that so long as you use your knives, looks will come second to performance. I mostly refer to my Sebenza w/ unique graphic & cabochan and my Lionsteel SR-1 sitting in my safe.
Truthfully though, there's nothing wrong with a good looking knife. My M390 Mule with desert ironwood handles & mosaic pins is a testament to that. It's just that I sincerely doubt I would love the knife as much if it was say, CTS-BD1 steel instead.
So my current rule is to go for the looks if possible, but give no quarter in performance. It's why even if I find a custom that's aesthetically pleasing to me, I mostly give it a pass because I know the CPM-154 steel is going to chip on me.