Do Models Really Make a Difference?

When I started to crochet scarves, cowls and now hats I was told that having someone model the items would help me sell more..... hmmmmmmm..... haven't seen that yet.

What do you think?

Would really love some opinions!  The girls are quite happy to model for me for a few free items :)

Oh - the two sets of little legs in the last photo are from a set of 1 1/2 year old twins.