With the amount of sales last quarter they are on track to sell well beyond their estimation for this fiscal year. So demand is outpacing supply.
I didn't expect to see these kind of shortages around here (not one to be found at the local Media Markt Groningen, a major buyer of PS3s from Sony). They need to be back on track in time for Final Fantasy XIII and God of War next month.
Likely they did antipate to sell enormous amounts of bundles in March.