Do you need my bar code to have the retail price embedded?

My former distributor discouraged embedding the retail price in the bar code--do we need to resticker our current inventory?

No need to resticker your books but we do want the retail price embedded on new print runs and reprints please. 

When the retail price is not embedded in the bar code, it often results in books being returned to us with unremovable and unsightly bookstore stickers.