# How to Find the Cheapest Price per Unit

I’m heading to the Dad 2.0 Summit tomorrow so last week I ordered more of my super cool playing card business cards.

I had to decide how many decks to buy – and I wanted to pay the cheapest price per deck.

### I had to work within my constraints.

I had only one and a half weeks to get them in. And less than \$50 budgeted for them.

And I needed at least 100 of them.

These playing card business cards aren’t cheap – about \$10 per deck of 54, plus shipping costs. But I love them.

I was willing to pay the premium price.

But I still wanted to get the cheapest price of the premium price that I could!

### So I did the math!

Here’s a screenshot of the price structure from YourPlayingCards.com:

### Since my budget was \$50, I had to go with four or fewer decks.

I started looking at the per-deck cost of shipping.

• If you order 1 deck, the cost is \$4/deck to ship it.
• If you order 2 decks, the cost is \$3/deck.
• If you order 3 decks, shipping is \$3.33/deck.
• And getting 4 decks cost \$2.50/deck for shipping.

### Four decks is the winner – or is it?

Four decks would be right at \$50 – and give me 216 cards. But if I went even more under budget with 2 decks – my total comes to \$26.

Since I only plan on using 50-100 cards at this conference, two decks would be fine.

“But that’s not the cheapest price per unit,” you say?

### The cheapest price per unit sometimes isn’t the cheapest!

If I buy two decks now, and two decks later, it costs me \$52 (\$26 + \$26). But if I buy four decks now it only costs me \$50.

Even though I want to get the cheapest price per unit, I’m focused on the the “out the door” cost, too.

What I really need right now is two decks. And the “out the door” cost on those is \$26. Just about half of the \$50.

Which means that, for now, two decks is the cheapest for what I need!

### How about you?

What have you found is cheaper in theory but not in reality? Share it in the comments!

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