Against Iraq and Libya you weren`t facing state of the art systems. The Prowlers are capable aircraft, but they might need some fine tuning after the first encounter. That happens some times when you encounter a system for the first time. Or the russians might not have introduced any effective new tweaks on this one, and you are spot on. Generally your EW performs very well, but the first encounter tend to be a bit shaky. (again SA-6)
In 1991, Baghdad was the most heavily defended city in the world, with overlapping SAM coverage, redundant command and control, and backed by the 7th largest airforce. They had state of the art Russian tech. The US took that system apart on the first night.
I really hate this: "wait till the US face a 'real' opponent arguments". The US military is combat veteran. It has fought more wars in the past 20 years than Iran, China, and Russia put together. It has proved itself capable of commanding large air armadas and supplying multi-Corps army formations on the move. No amount of training can recreate the "fog of war". Lastly, when was the last time Iran or any other country had an air exercise that involved thousands of sorties in ONE day. The last time the US did that was this month in Red Flag, the last time the US did that in actual combat was in 2003.
Prowlers are being replaced with Growlers
Depends, did the Americans receive the absolute latest Tor-M1 and S-300 systems? I have doubts that the Iranians would spend 700 million USD on a system the Americans have already played around with and know how to counter. As somebody mentioned before, isn't there an MK2 version of the Tor-M1 out? Also, would Russia really sell its best air defense equipment with the latest specs to a NATO country knowing that it can easily get compromised by the Americans? If that's the case then even the PLA wouldn't have bought so many S-300 missiles
The US had covertly procured Soviet weapon systems for years from third parties. This information was just recently declassified. USAF aggressor squadrons flew Migs in the Cold War.
The Iran will spend $700 million dollars on a compromised system because there is no other alternative. It is the best system for the money. It's not like they can go to another vendor.