What's up with Peggle's reviews?

[The Ghost of RubangB]

 

February 2007

Peggle comes out for the PC.  Metascore: 85.  Users: 84.

September 2008

Peggle Nights comes out for the PC.  Metascore: 76.  Users: 95.

February 2009

Peggle: Dual Shot comes to the DS.  Metascore: 85.  Users: 87.

March 2009

Peggle comes to XBLA.  Metascore: 89.  Users: 85.

September 2009

Peggle comes to PSN.  Metascore: 93.  Users 95.

 

 

What's going on here?  Only thing I can think of is that the really late PSN port has the least reviews, so maybe only the die-hard Peggle fans reviewed it?  It's a really late port outscoring 4 previous versions of the same game.  I don't think I've ever seen that before.