Spreadsheet vs Cardinal

Almost every card vendor starts in a spreadsheet, and for a while it works. The question is when the admin stops being cheap — and what you're giving up in the meantime.

Written by Ben and Tom, Cardinal

Where a spreadsheet is genuinely fine

If you hold a few dozen cards, sell occasionally and remember what everything cost, a spreadsheet is the right tool. It's free, it's flexible, and nothing beats it for a small, slow-moving list.

It stops being fine at the point where repricing takes an evening, two people need the same file, or you can't answer 'what is my stock worth today?' without a guess.

Side by side

Job to be doneSpreadsheet / Cardinal
Pricing a cardLook it up manually / Scan it and get a blended value from sold comps
Keeping prices currentRetype them, eventually / Refresh the whole shelf in bulk
Cash, trade and sale offersMental arithmetic / Calculated from your own percentages
Cost basis on a bulk buyRarely recorded / Allocated across every card automatically
Margin and ROIA formula you maintain / On the dashboard by card, category and purchase
Taking paymentSeparate device and reconciliation / Point of sale in the same app
Two people working at onceConflicting copies / One shared, live inventory
Knowing who changed whatNo record / Audit trail on every change
Showing a customer a valueThey see everything, margin included / Customer view hides cost and margin

The three costs people underestimate

Stale prices

A price typed in months ago quietly becomes the price you sell at. In a market that moves weekly, that's margin leaking in both directions.

Unrecorded cost basis

Without knowing what each card cost, every margin and ROI number you produce afterwards is an estimate dressed up as a fact.

Your evenings

The admin doesn't show up as an expense anywhere, which is exactly why it grows unchecked.

What stays the same

You keep control of your own numbers. Your buy, trade and sale percentages are yours to set, your data exports, and nothing prices a card without showing you where the value came from.

Cardinal was built by two vendors who ran their business on spreadsheets first, and it's shaped by the specific things that broke.

Try it before you move anything

The demo is a full sandbox of the real app with sample stock. Price a card, build a trade and take a payment without signing up.

Make better deals with your own stock.

Know what you own, what it's worth and what you're making on it.

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