Frustrated Dollar Tree shoppers threaten to ditch the store after it announces $7 items

• Dollar Tree customers say they'll shop at Walmart and elsewhere as the store adds more expensive items.
• The retailer said in March that some items would cost up to $7. 
• Despite some higher-income shoppers, many dollar-store customers are still on a tight budget.

Dollar Tree is adding items with prices as high as $7, causing customers to question whether shopping at the dollar store is even worth it anymore.