Tuesday cannot come soon enough. This is like a hot toys dream for me. Diecast, those accessories, the weaponry, the paint job, I wish all figures had this many options.
As for the diecast "debate".. I prefer the house party figures be plastic and the main iron man/war machine armors be diecast.
For me it's the perceived value. They just feel that they're worth the price and I enjoy the way the diecast feels over the plasti. It's just something I can't describe. My only complaint with the diecast figures is with the stands/bases. I wish they had a system that would make me feel more comfortable while displaying them in a flight pose. I wish the clamp supported the torso as well rather than just clipping onto the waist. But I'd definitely trade flight poses for diecast when it comes to main armors. Also, these figures are about the only collectible that I prefer to be diecast.