In my dealings with the buying public, size absolutely matters.
I can carve two santas with approx. the same size head, (which is where most of my carving time is spent), have one measure 7' on the other elongate the body to 12 or 14' and sell the taller one for three to four times more even though they pretty much took the same amount of time to carve.
I need the smaller ones out there next to the tall ones for that to happen but it will happen without fail.
In general most people opt for 'bigger is better' rather than 'big things come in small packages'!
Excuse me a moment, 'could you biggie size those fries'
GM.