Like I say.. more pixels does have advantages... A lot of my collections seen on the web are cropped...and I do make posters for the club.... I just didn't want poeple spending extra money on extra pixels if they thought it meant better pics....
I did a 15x12 for a comp at accy camera club where they are touchy about print quality.. I used a 2.1MP camera and got third place out of about 30 entries..
I love my extra pixels and the cropping capabilites though