We've all seen the Squeenix pricing model and some have even experienced it. Release game at full price, discount it 3 months later at 30% for older stuff 25% for new releases, in 6 months 50% off for both new and older releases and finally after 9 months 75% for Squeenidos titles (Tomb Raider, Hitman, Deus Ex). Final Fantasy normally peaks at 50% off but sometimes they get a base price drop like XIV has so the savings do get bigger.
mainline FF games sometimes get -50% discount these days, I'll give you that, sometimes even in a year after release.... if they are PC ports of prehistoric games.