All 3 of these systems arent selling extremely well, have successors out and are possibly eating away at said successors sales. How long until we see them cease to exist?
I think this year will see there final christmas then sometime next year, probably when this fiscal year ends, get price cuts (Wii-$99, DSi-$79, XL-$99, PSP-$99) and be discontinued around that time.
When the herd loses its way, the shepard must kill the bull that leads them astray.