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See for yourself why loot boxes always cost more
Your kid just asked for $20 to buy mystery boxes in Minecraft or Roblox. Before you say yes or no, make the buy-vs-gamble decision yourself — with fully visible drop rates — and watch your own numbers prove the math.
Drop Rates (fully visible)
Common 60%
Uncommon 30%
Rare 8%
Legendary 2%
Your Collection
0 of 5 items🗡️
Wooden Sword
Common
🛡️
Iron Shield
Uncommon
👢
Leather Boots
Uncommon
💎
Diamond Crystal
Rare
👑
Dragon Crown
Legendary
$5 per box · $8 per item
The Math Behind Your Result
Your result is not bad luck — it is the expected outcome. Here is why.
Expected boxes to get the Legendary item (2% drop rate)
50 boxes = $250
Calculated: 1 / 0.02 = 50 expected attempts × $5 per box
Buy-outright price for all 5 items
$40
Hardcoded: 5 items × $8 per item
Expected cost of gambling all 5 items (with duplicates)
~$150–$350+
Calculated from drop rate table using coupon collector variant with unequal probabilities
Even with generous stopping rules, the crossover point where gambling beats buying outright requires near-impossible luck. The Legendary item has a 2% drop rate — on average you would open 50 boxes ($250) just for that one item. You could buy it outright for $8.