quiltlady1941

I was wondering how many of you match the print on the backing of your quilt. I have to sew 21/2 lengths of the fabric together to make the back of a queen size quilt, the fabric has butterflies on it with pink background and was wondering if I should try and match the butterflies. I think it will take a little more fabric to match and not sure I will have enough but I guess I could try. Here is a picture of the fabric and the repeat of the butterflies it about 16 inches which I think is a lot. what do you think? Thanks for your help