Playstation One had given me some fond memories of true gamership, 70% of the games I played on the PSX were PSOne titles, especially Vagrant Story and XenoGears, my two most personal favourites. I still have the save file for the two (with XenoGears having been played over a second time until I maxed out all the characters this time around) while I still have some titles to unlock in VS through multiple playthoughs since I had started back in the year 2000.
Also, getting to play Metal Gear Solid for the first time on that system during that time was one of the best experiences I could ask for, its story and voice acting blew me away none like any other PSX title for its time.