Is the SAO Alternative–Gun Gale Online–2 Extra Booster booster box worth it?
A lottery — value in a few cards
The booster box costs €35.62 today (Cardmarket trend). 9 cards are worth €5 or more — €912.36 together, 25.61× the box price. The top five cards make up 87% of the whole set’s value.
How cards are priced
Most cards in any set are commons worth cents. Whether a box pays off depends on hitting one of the few top cards.
Most valuable cards in the set
Full set →| # | Card | Set | Price today | 30 days |
|---|---|---|---|---|
| 1 | SAO Alternative–Gun Gale Online–2 Extra Booster | €200.00 | +6% | |
| 2 | SAO Alternative–Gun Gale Online–2 Extra Booster | €199.99 | 0% | |
| 3 | SAO Alternative–Gun Gale Online–2 Extra Booster | €170.00 | 0% | |
| 4 | SAO Alternative–Gun Gale Online–2 Extra Booster | €155.00 | 0% | |
| 5 | SAO Alternative–Gun Gale Online–2 Extra Booster | €134.99 | 0% | |
| 6 | SAO Alternative–Gun Gale Online–2 Extra Booster | €24.50 | 0% | |
| 7 | SAO Alternative–Gun Gale Online–2 Extra Booster | €9.98 | 0% | |
| 8 | SAO Alternative–Gun Gale Online–2 Extra Booster | €9.00 | -8% | |
| 9 | SAO Alternative–Gun Gale Online–2 Extra Booster | €8.90 | 0% | |
| 10 | SAO Alternative–Gun Gale Online–2 Extra Booster | €4.98 | 0% | |
| 11 | SAO Alternative–Gun Gale Online–2 Extra Booster | €4.09 | -1% | |
| 12 | SAO Alternative–Gun Gale Online–2 Extra Booster | €3.98 | 0% | |
| 13 | SAO Alternative–Gun Gale Online–2 Extra Booster | €3.98 | 0% | |
| 14 | SAO Alternative–Gun Gale Online–2 Extra Booster | €3.74 | -1% | |
| 15 | SAO Alternative–Gun Gale Online–2 Extra Booster | €3.74 | -1% | |
| 16 | SAO Alternative–Gun Gale Online–2 Extra Booster | €2.99 | -17% | |
| 17 | SAO Alternative–Gun Gale Online–2 Extra Booster | €2.85 | 0% | |
| 18 | SAO Alternative–Gun Gale Online–2 Extra Booster | €2.48 | 0% | |
| 19 | SAO Alternative–Gun Gale Online–2 Extra Booster | €2.40 | 0% | |
| 20 | SAO Alternative–Gun Gale Online–2 Extra Booster | €2.00 | 0% |
Prices: Cardmarket trend, updated daily — as of Oct 30, 2026.
Box price history
How to read these numbers
The full-set value is what all cards would cost as singles. One box won’t complete the set and the rarest cards are rare, so we focus on cards from €5. If they are worth many times the box price, the set is rich in valuable cards; if value is concentrated in a few cards (high top-5 share), opening is a lottery.
If you want a specific card, buying it as a single is almost always cheaper. A box makes sense if you enjoy opening, play limited/draft or collect sealed product.

