Most of the cost of those wars went into the pockets of US companies and contractors so they can be seen as massive subsidy packages for the US economy.
If your two other points are the only consequences you can think of then it has indeed all been very limited in the grand scheme of things.
Did they? The US sent 12 billion in cash (actual, paper cash) to Iraq and it went POOF. Weapons you fire and transport around the globe aren't free, pulling thousands of reservists from productive US jobs as cheap troops is not free. Lasting effects of PTSD and huge amounts of VA expenses for veterans is not free.
If your two other points are the only consequences you can think of then it has indeed all been very limited in the grand scheme of things.