First off is the presentation box it comes in - nice packaging with the old school Rogue Trader front cover artwork by John Sibbick. I look at it and I am immediately 11 again - back in the days with no grown-up concerns, no exams and just a passion for painting toy soldiers and playing games with my Dad... Good times!
And as if my nauseating nostalgia wasn't enough, the front of the box pops open to reveal some more photos of the painted model. Quite a nice touch for a commemorative piece. (This is magnetised to prevent unwanted flopping)