US: Libya v. AFG and Iraq

If you compare the consequences of Libya to Iraq and Afghanistan, then it's clear that the US intervention in Libya was less expensive* (so far) than in Iraq and Afghanistan.
*As in (1) the monetary price that US taxpayers pay/will pay, (2) loss of US lives, (3) loss of non-ISAF nationals' lives, etc.
Since it's clear that Libya is less costly than the other wars and their post-war reconstruction efforts, and if the US wants to intervene in a country, then is not the Libyan model the optimal approach?
*As in (1) the monetary price that US taxpayers pay/will pay, (2) loss of US lives, (3) loss of non-ISAF nationals' lives, etc.
Since it's clear that Libya is less costly than the other wars and their post-war reconstruction efforts, and if the US wants to intervene in a country, then is not the Libyan model the optimal approach?