Is a switch to PS1 ->PS2 justified?

[AmOS]

I have PS1 and after listening to all about PS2 from last 6 months , I am tempted to buy one. I have played a couple of games and liked its performance. Is the switch to Ps1--> Ps2 justified? What are the advantages? Will the game truly harnessing the power of Ps2 come up> If yes, when? Or should I wait for X-box, Gamecube? Also, what's the color of ORIGINAL PS2 Cd's and DVD's?