I have to believe it was because Sal was doing Hulk and ROM concurrently for the bulk of the 1980s, not to mention being the pinch-hitter whenever an Editor needed a job done, like a MARVEL TEAM-UP or MARVEL PREMIERE thing. Plus, I'm thinking Al Milgrom, who I feel did a giant chunk of ROM/Hulk covers, probably wanted to keep his art-hand in, being he was an Editor at the time. I'm only speculating.

I'd have to research the time frame for when Milgrom stopped doing Hulk/ROM covers and became full-time artist on AVENGERS and WEST COAST AVENGERS. I feel like the covers led into the interiors, perhaps because Al had relinquished his Editor post. But again, I haven't researched.

One of my favorite Hulk images of all time. I had this on a sweatshirt when I was a kid, on the front, and on the back was the Hulk in the same post shown from behind. I once had pics of me at eight yrs old in that shirt sitting in the hand of a King Kong statue in Virginia's "Dinosaurland", but a building fire claimed them.

One of my favorite aspects of Trimpe Hulk: the Trimpe Hulk eye squint. Always seems like a throwback homage to the Fleischer Superman.