Can someone explain why people thought that Playstation All-Stars would sell millions of copies?

[Kresnik]

richardhutnik said:

As of now, it is under 400K sold total across all platforms it is on:

http://www.vgchartz.com/gamedb/?name=playstation+all-stars

Two versions, 450k combined atm.  Not under 400k.

 

And only a few people made absurd predictions about it selling absolute millions.  A lot of people predicted 1-1.5 million LT, myself included, which is a prediction I stick by.