Lololol, I was currently watching this exact video before seeing this thread 🤣
The discussion in itself is interesting but I personally think beyond the budget and efforts put into these remakes, remasters, in-betweens and HD ports.
Sometimes their pricing is only due to the IP to which it is attached. They obviously highly value Luigi's Mansion and DKC enough that they're willing to sell those HD ports at the same rate that high polished remakes or remasters effort like TTYD or Xenoblade Chronicles DE for example.
Metroid Prime Remastered however is prolly seen a bit lesser in that regard because it doesn't the numbers those series do.
Also, Imma gonna respectfully disagree on Arlo's tangent with the Famicom Detective Club remakes. He's clearly uninformed of the old-school Japanese adventure genre to simply classify it as "another visual novel" despite it not being that.
And from an art perspective, those games got massive upgrades over their original which ultimately justify their prices more than enough.
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