even if u get a civic now, the build date will be a few months ago so i wouldent be worrying about it devaluing in a few months coz it an 07 model. therefore, if u buy one in the first few months of 08 it might still be badged as an 07 build and valued accordingly. just something to look out for

imo either be happy with it now or wait for the update. alternatively, wait until just before the update and pick one up cheaper