Let's dust those fuckers off and play them. It's only got one of the strongest game libraries ever, man.
I've been playing Castlevania Curse of Darkness all morning and while the level design blows something fierce, I'm enjoying the addictive little subsystems (leveling/developing monsters, crafting weapons, smacking down enemies) enough to push on down those seemingly endless, repetitive corridors.
Plus, it runs fairly well in PCSX2!
If you haven't got a PS2, it's a semi-viable alternative (though your game selection will be significantly more limited depending on how particular you are on emulation quirks).
So fuck yea, let's spend some time this month playing PS2 games and posting about them.
PROTIP: Avoid Skygunner. It sucks.