Somewhat in-passing while looking through the Christmas discounts, the numbers involved on the Arx purchase page caught my attention:
Aside from lacking a measure of Arx per price, the largest one especially looks like a near-doubling of price for not nearly such a proportion of Arx. Even while making a table of those rates, it occurred then to me that it is unclear whether those bonus notices are included in the larger number above; for example, whether £45 means 85000 Arx or 100000 Arx while that bonus is present.
Here are all the Arx per price rates, with:
If the bonus is included then we have tier 6 worse than tier 4 now, and three tiers worse than tier 1 normally. If the bonus needs to be added onto the main amount then we obtain sensible tiers now, but that still means the normal amounts without the bonus are placing tier 6 worse than tier 4 normally, so something is wrong either way.
In order of importance starting with the most important, suggestions are:
Aside from lacking a measure of Arx per price, the largest one especially looks like a near-doubling of price for not nearly such a proportion of Arx. Even while making a table of those rates, it occurred then to me that it is unclear whether those bonus notices are included in the larger number above; for example, whether £45 means 85000 Arx or 100000 Arx while that bonus is present.
Here are all the Arx per price rates, with:
- The bonus removed, to compare them without the bonus if the main number includes it.
- The main number as written, either if it includes the bonus or to compare without the bonus.
- The bonus added, to compare them with the bonus if the main number excludes it.
- Errant cases in red where some smaller transaction has a better rate.
| Price | Bonus removed | As written | Bonus added |
| £3 | 1667 | 1667 | 1667 |
| £5 | 1596 | 1680 | 1764 |
| £9.6 | 1656 | 1750 | 1844 |
| £13 | 1862 | 1962 | 2062 |
| £25 | 1920 | 2040 | 2160 |
| £45 | 1556 | 1889 | 2222 |
If the bonus is included then we have tier 6 worse than tier 4 now, and three tiers worse than tier 1 normally. If the bonus needs to be added onto the main amount then we obtain sensible tiers now, but that still means the normal amounts without the bonus are placing tier 6 worse than tier 4 normally, so something is wrong either way.
In order of importance starting with the most important, suggestions are:
- Clarify exactly what is the Arx amount being purchased:
- Always show the total, if a special promotion is present with some amounts increased.
- Ideally show only the total; if a promotion effects needs denoting, use a strike-through or otherwise make it very clear which number is not the total.
- Display the rates; personally I prefer Arx per price so that higher numbers are better, but price per (thousand) Arx would suffice.
- Keep the tiers consistent in the context of rate per magnitude; no tier should ever have a lower rate than a lower tier.
