I'll be honest. I'm weird. I WANT to pay Disney for a legal copy of the original 1977 Star Wars, whether that be through the purchase of a disc, a digital file or streaming on D+. I currently may or may not have in my possession several different versions of the film that aren't readily purchasable. If I wanted to be selfish just for my own viewing, I'd leave it at that. But I think it is important to support the idea of things like this. I think its important to support film being celebrated. I'm sorry George is embarrassed by the original version of Star Wars. But its an important piece of cinema. I'd love to show my son that version first. And he may never want to watch it again deciding to focus on the Saga version. Or he might hate Star Wars. That's cool too!
And bringing it back to the actual topic of conversation, I think that TMP's SLV is the same thing. Yes, its an inferior version to either the theatrical or the director's cut. But its a piece of Star Trek history that many fans had as their first and only version of the film for a long time. And while I'm not sure I'd pay full price for the first four Star Trek movies on UHD (the price of which has gone from $70 to $105 and is now around $90 on Amazon... weird), I would pay for all three versions of TMP.
But I also admit I'm weird.