As one of the people thinking the Solar is overpriced, I think the other guitars you've mentioned are also overpriced.
I think Gibson LPs are one of the most (perhaps the most) overpriced guitars on the market. Excessively thick neck with a sticky gloss finish, inferior scale length, only 22 frets, poorly designed neck heel, restricted access to the upper frets, uncomfortable bridge with limited intonation range, awful tuning stability, poorly positioned tuners, nut binding issues, no volute, chunky heavy body, neck dive...what have I missed? All innovations in guitar design seemingly ignored for the past 71 years and we're supposed pay a premium for that? 🤔
I can understand the appeal of owning a classic '50s / '60s LP (not that I'd own one myself), but not why the new models continue to sell despite not having moved with the times. You don't see any big car manufacturers having success with this approach, so I don't get why it works with guitars.
I don't get how a Jackson DK1 with a solid finish is priced at 2x higher than an Ibanez RG550. My assumption is that this is the result of Americans (but probably not Europeans) valuing MIA more highly than MIJ.
Provenance matters, but not entirely why you think it does. At least 1:1, directly.
As has been mentioned, we're getting into the subjective absurdity more suited to one of the various "unpopular" shit-post threads.
If you don't like a particular guitar, you're probably not going to think it has the same value as one you do like, and chances are, it's mostly "just because" as with preferences with most hobbies that folks nerd out over the minutiae that really only matters to us geeks.