The ps1 still remains to be more profitable for methan ps2's. $40 for the chip and install and MUCH easier without any of the problems you get with ps2's. I average about 4 minuets an install on them.
Thet are still selling the ps1. I seen one today and it's $68 canadian. So they are still being bought and combine those with te ps1 and the grey box, you have a lot of machines.