Community price on backpack.tf: 8.50–11.0 keys, last changed 2020-07-10 (6.3y ago). The live quote above, 9.82 keys, is inside the community’s range and last moved 16d ago. They are different measures: the quote is what traders and bots are asking and bidding on the classifieds right now, and it moves for thousands of items every day; the community price is a suggestion accepted by vote, which changes only when someone argues it should. A quote well away from the vote is usually a price that is about to be re-argued. Community prices from backpack.tf, read under an hour ago.
Steam Market asking price: $46.82 — the lowest of one listing for the Kill-a-Watt effect when we looked on 2026-10-13 01:39 UTC (5h ago). This is what a seller is asking, not what anything sold for. Steam pays out in Steam wallet funds, not cash, and Valve takes roughly 15% at the till — so asking prices there run well above the 9 keys, 51.66 ref shown above, which comes from the keys-and-metal market on backpack.tf. The two are different markets and are never blended. Steam lists the item as “Unusual Gentleman's Gatsby”, with no effect in the name — the effect comes from the individual listing.
Price history
38 observations
Interactive chart. Press the left and right arrow keys to move along the series, Home or End to jump to either end, Escape to clear.
The key axis converts at today's rate. Prices are recorded in metal, so a line that is flat in keys followed the key rate rather than standing still.
Kill-a-Watt Gentleman's Gatsby sell price, 2025-09-25 to 2026-10-04: 38 observations, from 12.2 keys to 9.83 keys.
Observed (UTC)
Sell
Buy
25 SEP 2025 · 03:29 UTC
12.2 keys
6.99 keys
30 SEP 2025 · 20:22 UTC
11.1 keys
7.03 keys
9 OCT 2025 · 08:05 UTC
10.7 keys
7.37 keys
19 OCT 2025 · 19:51 UTC
10.1 keys
7.03 keys
25 OCT 2025 · 16:10 UTC
9.64 keys
6.73 keys
10 NOV 2025 · 00:11 UTC
10.3 keys
7.10 keys
26 NOV 2025 · 12:49 UTC
19.0 keys
5.17 keys
29 NOV 2025 · 10:47 UTC
14.0 keys
5.17 keys
9 DEC 2025 · 22:42 UTC
19.6 keys
5.36 keys
25 DEC 2025 · 23:00 UTC
19.0 keys
5.37 keys
14 JAN 2026 · 14:15 UTC
17.0 keys
6.66 keys
18 JAN 2026 · 21:20 UTC
15.9 keys
7.23 keys
19 FEB 2026 · 06:40 UTC
17.0 keys
8.96 keys
22 FEB 2026 · 22:40 UTC
16.0 keys
8.60 keys
1 MAR 2026 · 00:41 UTC
15.4 keys
8.84 keys
8 MAR 2026 · 22:41 UTC
16.3 keys
9.57 keys
23 APR 2026 · 14:30 UTC
13.1 keys
10.5 keys
7 MAY 2026 · 16:32 UTC
12.9 keys
10.4 keys
10 MAY 2026 · 20:31 UTC
13.4 keys
10.9 keys
22 JUN 2026 · 17:13 UTC
14.5 keys
12.6 keys
29 JUN 2026 · 01:14 UTC
15.7 keys
13.7 keys
5 JUL 2026 · 23:12 UTC
16.4 keys
14.2 keys
12 JUL 2026 · 12:45 UTC
19.0 keys
16.5 keys
22 JUL 2026 · 12:46 UTC
23.0 keys
20.0 keys
9 AUG 2026 · 01:11 UTC
23.1 keys
20.0 keys
21 AUG 2026 · 12:08 UTC
9.35 keys
8.13 keys
25 AUG 2026 · 10:09 UTC
9.48 keys
8.24 keys
25 AUG 2026 · 22:09 UTC
9.50 keys
8.26 keys
27 AUG 2026 · 20:10 UTC
9.54 keys
8.30 keys
28 AUG 2026 · 09:36 UTC
9.83 keys
8.55 keys
8 SEP 2026 · 22:09 UTC
9.57 keys
8.32 keys
15 SEP 2026 · 18:08 UTC
9.74 keys
8.47 keys
24 SEP 2026 · 06:08 UTC
9.90 keys
8.61 keys
24 SEP 2026 · 18:08 UTC
9.90 keys
8.61 keys
25 SEP 2026 · 06:07 UTC
9.91 keys
8.62 keys
25 SEP 2026 · 18:08 UTC
9.96 keys
8.66 keys
26 SEP 2026 · 20:09 UTC
9.82 keys
8.54 keys
4 OCT 2026 · 01:10 UTC
9.83 keys
8.55 keys
Price history in numbers
38 readings since 25 Sep 2025
Over the last 30 days the Kill-a-Watt Gentleman's Gatsby's sell price ranged from 9.74 keys to 9.96 keys and is up 0.9% after 6 moves. Over a year it ranged from 9.35 keys to 23.1 keys (down 2.9%). Today's 9.83 keys sits at the bottom of its range: the lowest we have recorded is 9.35 keys (21 Aug 2026) and the highest 23.1 keys (9 Aug 2026). The price has moved 37 times since we began recording it — about once every 10 days.