>>723211585 (OP)
I've been thinking about the special qualities that PS2 classics have. I think one of them is that the studios set out to create THE video game, because they thought the technology wasn't a limit anymore. This lead to technical, design and artistic solutions that weren't based on standardized practices, but innovation. Of course there were higher-ups meddling with the projects then too, but the video game audience was nowhere near as big as nowadays, so even big budget games targeted niches instead of the masses or the "blue sea". In short, this lead to games where developers made the best they could when it comes to gameplay, graphics and story, while having a large amount of creative freedom.
I still find that feeling of "the video game" in modern games every now and then. Recently I've had it while playing Nine Sols, despite its obviously smaller budget compared to PS2-era Squaresoft and such