Finally two sales :o They're not very close together tho.

Resuggestion of https://backpack.tf/suggestion/5b5074d844325a101363709a

Ghastly Ghosts Battin' a Thousand

New price: 15-25 keys

Proof:

Sale #1 (3 weeks)= 25

https://backpack.tf/profiles/76561198091230177#!/compare/1532649600/1532736000

https://backpack.tf/profiles/76561198039391597#!/compare/1532736000/1532822400

Sold for a bubbling sensei (17) + a cyclone fresh brewed (5) + ~3 keys sweets = 25.

Marketplace.tf sales:

https://marketplace.tf/items/1117;5;u3012

Sale #1 (2 weeks) Sold for 28.00$ = ~15

Classies: https://imgur.com/a/LHkD302

Unsold forever at 44.

Buyers start at 8.24.

_________________________________________________________

SUMMARY

Sales:

15

25

And they say marketplace sales are high...

Including both.

Going with 15-25 keys.

Feel free to add proof to support or counter my new price.