Week 8 — Points Are Weird Money

Loyalty points can look like cash, but they come with expiry dates, limits, and rules that can make them worth less than they first appear.

14 September 2026

Core question#

Is a reward point really equivalent to cash?

A scheme that says “1 point = 1 cent” is quoting a face value. Whether a point is actually worth a cent to you depends on whether you can redeem it for something you wanted anyway, before it expires, without hitting a minimum balance that leaves some points stuck in your account.

What reduces advertised value#

• Redemption restrictions — points may work only on certain items, only above a minimum balance, or only in fixed blocks.
• Expiration — an unused point that expires before redemption was worth exactly nothing, regardless of its printed value.
• Lock-in — a scheme that only pays out well once you’re already spending heavily with one retailer can make you stop comparing other stores.

A reward’s advertised value and its practical value may differ.

Expected usable value#

The same combine-the-rules thinking from Week 4 applies. Start with the points earned, then ask: how likely are you to use them before they expire, and how much of the advertised value will you actually get after all the rules? That is more useful than accepting the headline rate.

The $249 headphones#

Suppose the store offers 500 points (advertised as “$5 value”) on the headphones purchase, redeemable only in $10 blocks, expiring in 90 days, and only on accessories. If nothing on the accessories page is wanted within 90 days, the realistic expected value of those 500 points is closer to $0 than $5 — not because the retailer lied about the exchange rate, but because the rules around it were missing from the “$5 value” headline.

The 500-point award and its restrictions are invented for this example. No real loyalty programme's terms are being described.

Learning outcomes#

By the end of this week, you should be able to:

• distinguish a reward point’s advertised value from its realistic usable value
• name at least two restrictions — redemption limits, expiry, lock-in — that reduce value in practice
• describe a loyalty scheme as a set of rules, reusing Week 4’s idea
• estimate realistic usable value using the chance you will redeem the points and the amount of advertised value you can actually capture
• explain why a scheme that only pays out well under heavy lock-in works against comparison shopping

Before class#

Find the terms of one real loyalty or rewards scheme you’re a member of, or one you can look up, and note its stated exchange rate plus any restriction on redeeming it — minimum balance, expiry window, category limits.

In class#

Using the scheme you brought, estimate a realistic expected usable value per point, not the advertised value. Be ready to explain how likely you are to use the points and which rules reduce their value.

What you should leave knowing#

A point’s advertised value and its realistic value are different numbers, and the gap between them is exactly the restrictions the headline rate doesn’t mention.

Where this goes#

Week 9 leaves the single retailer entirely and asks whether “new, from this store” was even the right category of purchase to be comparing.