Short answer: Yes!
We recommend that you take full advantage of the price breaks. You can buy extra barcode numbers with future products in mind. The barcode numbers are good for life!
Example: You currently have two retail products but have plans to expand your product line in the future. You can purchase the "5 Bar Codes" package, use two numbers now and hold the other three numbers for future products.
You can purchase the barcode numbers here: Buy Bar Codes