From Bulbapedia, the community-driven Pokémon encyclopedia.
An item maniac (Japanese: 道具マニア item maniac) is a person who will purchase certain items from the player at a higher price than what they would be sold for to a Poké Mart. Some items which cannot be sold to Poké Marts can be sold to item maniacs. They appeared in Generation V.
Unova
Gourmet maniac
A Maid in a trailer on Route 5 will sniff out any gourmet cooking ingredients in the player's bag and offer money for them.
For Berries, she offers different amounts depending on their relative rarity.
- Most common: All Berries not listed below
- Uncommon: Razz, Bluk, Magost, Nanab, Wepear, Pinap, Cornn, Rabuta, Nomel, Spelon, Pamtre, Watmel, Durin, Belue
- Rare: Lansat, Starf, Enigma, Micle, Custap, Jaboca, Rowap
She gives the following amounts:
The prices she offers for vending machine drinks and Moomoo Milk are the same as what the player pays at Vending Machines and Driftveil City market, respectively. All offers are higher than the prices offered at a Poké Mart.
Ore maniac
A Gentleman inside the Icirrus City Pokémon Center will offer to buy a variety of stones, gems, and other items from the player.
Billionaire maniac
A man from the Riches's house, who is dressed as a Black Belt, appears in Undella Town. He will purchase Relic and flute items from the player.
Rare Bone maniac
A shady man in a house on Route 18 will buy Rare Bones from the player.
A Pokémon Breeder at the end of Mistralton City's runway will buy Mulch from the player.
Notes
In other languages
