It seems like your question might need a bit more context to provide an accurate answer. The phrase "1.28×10 V in the store" is unclear, and "how many stars would you have?" and reference to "additional three bunches" don't directly relate to any specific song recommendations or monetary calculations.
If you are referring to a game, app, or specific context where you are buying songs or items and there is a currency or star system involved, please clarify the rules or the system you're referring to. More information will help me provide you with the best guidance.