Those figures show Yttrium is about half the price of Titanium metal.

I was shocked at how cheap Yttrium is (I searched for pricing because I thought the 1% might be too expensive). Now I want to buy some...

Ah, that was a typo. Not dearer.

Not cheap.

Ah shit. I can't shift zeros. 1% of 28900 $/mt is $289. [Yeah: My initial assumption was that Yttrium is really expensive - and it fucking is - I ignored my own smell test - I should have caught my mistake].

That is say 5% of the current final price of Ti (ignoring purity) to end up with something with less oxygen but 1% fucked with Yttrium. You can't just increase price by percentage points for highly competitive commodities. You especially can't add dependencies on elements that are in limited supply and supply controlled/constrained by politics.

So this looks like another academic bullshit result that totally ignores economical realities.