I’ve come to look at it like this (from SS),
Iron Monger US $479.99
The Iron Monger Sixth Scale Figure features:
•Authentic and detailed fully realized likeness of Iron Monger, featuring the likeness of Jeff Bridges as Obadiah Stane in the Iron Man movie
•Approximately 17.5 inches tall
•Over 60 points of articulation
•Specially painted armor
•One (1) pair of palms with improved articulations, movable fingers and light-up repulsors (white light, battery operated)
•LED-lighted eyes and micro ARC reactor (white light, battery operated)
•Chest can be opened to reveal Obadiah Stanes head sculpt
•One (1) rotatable machine gun on right arm with LED-light
•One (1) mini-rocket launchers on left arm with LED-light
•One (1) cannon launcher on left shoulder
•Two (2) pairs of boot jets attachable to the back of armor on left and right legs for Flying Mode
Hulk US $299.99
The Hulk Sixth Scale Figure features:
•Authentic and detailed fully realized likeness of Hulk in The Avengers movie
•Approximately 16.5 Inches (42 cm) tall
•One (1) newly developed head sculpt with separate rolling eyeballs
•Movie-accurate facial expression featuring his angered expression with detailed wrinkles and skin texture
•Detailed hair sculpture
•Giant green-skinned muscular body featuring detailed skin texture and tendons, with over 20 points of articulation including built-in joints in neck and arms which allow flexible movement
•Two (2) pairs of interchangeable palms including:
•One (1) pair of relaxed palms
•One (1) pair of forceful fists
•Each piece of head sculpt is specially hand-painted
•One (1) pair of ragged grey shorts
There's a $180 dollar difference, but they’re both Marvel licenses so the only thing I can see making up the difference is construction and accessories, so with Hulk being about as basic as he can be, unless everyone wants to pay more for him, everyone should just thank their lucky Stars we’re getting him and leave it alone.