at wholesale with no shipping i would definitly buy a bolt of batting- since i seem to constantly be out---
if i were going to stock up on any fabrics i would probably choose 108" or wider backing fabrics
if tools were what i wanted i'd stock up on rotory blades- since they are so dog-gone expensive....
but if i had to stick to $200 or less- i'd definitly go with the batting.
but i suppose that would depend on how much actual quilting you do- since i'm quilting 5-10 quilts a week i always need batting.