Ps1 games still worth playing nowadays.

[JRPGfan]

Persona
Persona 2 - (part1) Innocent sin (fan patched if you want ps1 version)
Persona 2 - (part2) Eternal Punishment
Final Fantasy 4 up to 9
Chrono Trigger (even if snes version loads better)
Chrono Cross
Alundra 1 & 2
Breath of fire 3 & 4
Thusand Arms
Wild Arms 1,2
Lunar I & II