Sony or consumers: who decides PS3 lifespan?

[neotea]

S.T.A.G.E. said:
Sony decides the lifespan, not the consumers. It doesn't matter what consumers do, Sony will have their consoles out on the market longer than expected. The system could sell great ( PS2), or it could sell terribly (PS3). This should bolster my point that consumers do not sway Sony in the least. Sony milks something until it's dead.

 

So if consumers stop buying the ps3 tommororo what than?  Just hypothetical