@shiny said in Since Gatou Shoji's work is so successful, why not physical releases of Amagi Brilliant Park:
The fact it had an anime at all should be a plus for it though, especially as the show and author are both successful.
Unfortunately, the simple fact of the matter is that it's usually the opposite outcome. An older anime has been shown time and time again to be detrimental to light novel sales of that same series in English. A new anime (within the last year or two, but preferably airing after or during publication) has been shown to increase sales, though. Some exceptions exist such as republications of old Tokyopop releases such as FMP and Slayers, but those require considerable fanbases and reasons for fans to rebuy them (higher quality hardcovers and a modern retranslation, for example, both of which require a lot of up-front cost). If Kadokawa were to up-front the cost for Amagi and/or Kokoro Connect physicals, then it could be feasible, but I personally don't see that happening.