I think the arguments you bring up are usually mentioned in the context of subscriptions and salaries. LCK's product is a one-time purchase, so the psychological limit sounds like just about $5, which is a price so low that you don't have to debate with yourself whether you want to buy it or not.
Use Steam videogame and iOS game prices as a corollary instead.
Use Steam videogame and iOS game prices as a corollary instead.