Holice, great idea!
I'm bookmarking this - Auburn is less than an hour away from me and right off 290 and the pike, great location.
$4.99 sounds great to me as the only shops I know of in MA are LQS and Joanne's! And LQS is $10-13/yd.
I'd say anything under LQS/Joanne's prices or other bargains is worth a post!