I thought so.
There's an incredible featurette on the AF1 freefall scene, highlighting the work done by the stunt team.
They never say it, but i reckon they were at least slightly inspired by the plane hijacking in TDKR, with most of it being done in-camera. They *could* have done it all CG. But they went to incredible lengths to capture as much as they could in-camera.
I reckon the IM3 BR disc set is worth buying just for the documentaries.
And as for the "wine cellar" suits, in the commentary, Shane Black talks about how upset he was that Marvel/Disney showed so much of the other suits in the trailers and other promo stuff. He wanted to never mention the other 34 suits at all and only show footage of the MK42 and IP(Without ever referring to the MK42 by name).
If he had his way, the reveal of all the other suits would have been a total geek-out surprise for fans in the house party scene at the end.