Size and detail. That's why there's a difference between small infantry, infantry and elite infantry; and characters and large characters.
The 'full' nurgling bases are are the same size base as the others you painted, but have more 'model', more plastic, to paint.
Same as, say termagants, would be 1 point and genestealers 2 points.
Both on the same size base, but there is less model, less plastic on the termies.
Does that make sense?
Also there is the possibility of highly detailed and well painted models getting bonus points.
If models are just table top, with a couple layers slapped on. Paints not thinned and obvious brush mis-strokes, then it gets the basic.
But if a model has an overt amount of detail, even sometimes conversions or extras added; it can be nominated for bonus points. That is voted on by the other members. Usually just the other contestants.
Heh, I was called a Grognard.
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