PSPgo price went back to 200 dollars... wut?

[NiKKoM]

This week we had an price cut for the PSPgo:

http://www.engadget.com/2011/03/03/sonys-psp-go-officially-drops-to-150/
http://gamrconnect.vgchartz.com/thread.php?id=125406&page=1

but now the price seems to be back at 200 dollars:
http://www.engadget.com/2011/03/05/psp-go-price-cut-quietly-slinks-away-now-priced-at-original-20/
http://us.playstation.com/psp/systems/pspgo.html

now that's strange... wut are they doing?