All the EB Games and Game Stops around here are now clearing out (or no longer carry) PS2 games (and GC/XB) and Walmart and the like stopped having a PS2 section for a while now. Doesn't look like any developers are going to make any new PS2 games as they are all projecting it's death. With no games available for purchase, systems sales are sure to plummet to zero. I can't see PS2 lasting even another 6 months.
However it's had a monstrous run and will always be remembered as a truly great system.