Max Buy is a simple card show buying calculator built for sports card resellers.
Enter the asking price, recent comp, selling fees, shipping cost, and your desired margin. Max Buy instantly shows your max buy price, expected profit, ROI, and a clear Buy, Pass, or Negotiate result.
Use it when you are standing at a dealer table, digging through boxes, or trying to decide whether a card actually works as a flip.
Features:
• Calculate max buy price
• Estimate selling fees and shipping costs
• Set your desired profit margin
• View expected profit and ROI
• Get a quick Buy, Pass, or Negotiate result
• Save deal decisions for later review
• Use preset assumptions for faster show-floor decisions
Max Buy does not provide card values or live comps. You enter your own recent comp data from your preferred pricing source. The app simply helps you apply disciplined buying math before you spend money.
Built for collectors, sports card flippers, and part-time resellers who want to protect margin and avoid overpaying.