Afghan War Cost $89 Billion So Far
"If Congress approves the 2006 supplemental -- something that could happen Wednesday -- the Iraq war cost will rise to an estimated $320 billion; the Afghan war, $89 billion, and $26 billion for Operation Noble Eagle."
I think everyone would agree that the $89 billion was well spent, including any ongoing costs in Afghanistan. As such, it's not really appropriate to lump it all together.