How in the hell has PS2 managed to sell over 100 million systems?

[Diomedes1976]

I havent got a Playstation 2 but I have a Playstation 1 and a PSP and they both work flawlessly .....I am quite pleased with the quality of the Sony products .And the PS3 seems to go after the PS1 and PSP moulds and not the PS2 with its cheap components .