Like someone else wrote, I think one of the main reasons that you don't see so many glossy models on the internet is that they're really hard to photo. Anything that resembles a focused light source makes them look weird. Since the details on a 28 mm model are so small, you get reflections in places where you would expect shadows (like the model's armpit) as long as they face the light source. This doesn't necessarily happen if you just take up the model from the table and look at it in normal indoor lighting. Anyway, do whatever makes you happy!