Excuse my lack of understanding ...
"In this case, 'full' can no more alter the meaning of 'costs' than it can the meaning of 'moon,' 'speed,' 'time,' 'parking lot,' or 'house'".
Full moon as in not a waxing phase?
Full speed as in not being stuck behind a cyclist?
Full time as in not half time?
Full parking lot as in a parking lot without an illuminated 'NO SPACES' sign?
Full house as in a house that isn't occupied by 150 squatters?
I really don't see this argument ...