Hulk maquette is really big, if the black wooden base are same high on the image... Iron Man with the base I come to about 77 cm (30 ")
Price will be higher than expected, therefore, if one counts all together
+ Legacy Effects Bonus
+ Avengers hype
+ Hulk Performance in the Movie
+ Sideshow price increase
+ Hype around this maquette in all forums, Facebook, etc. (Sideshow can read everything)
= $ 899-999 if not more, very unlikely that the Sideshow will sell for less
Here are my comparison of course is that now all just speculation because we do not know the final size
and Here's a size comparison with the Hulk PF