"What would you do?" said Fiddes after Aronsay had posted his eighth win for stake earnings of $89,325.
"It goes without saying I will renew the lease.
"The horse has more than paid for himself since I got him three years ago."
Aronsay fairly outstayed his rivals in a rating 85 2200m yesterday.
"I am just so very proud of the horse," Fiddes said.
He leased Aronsay from Hugh Sutton, of Auckland, after the Drama Critic gelding had been sent to the Washdyke stable of Michael Daly as a maiden 5yr-old in 2009. Aronsay had two unplaced starts in the Auckland area.
"I just liked the way he [Aronsay] walked," Fiddes said.
Aronsay, who won the Oamaru Cup 12 months ago, gained his hurdles ticket last week but his immediate aim is a flat race at the Grand National meeting.
Edenwold sired his first winner when Cheeky Tart prevailed by a nose in the race for 2yr-olds yesterday.
Edenwold, who stands at the Berkley Stud at Greenpark, operated by Edwina Morris and Alan Jones, was the champion 2yr-old in Canada in 2005 and he won the prestigious Queens Plate (2000m) at 3.
Cheeky Tart is a filly out of the Hereward The Wake mare, Masterkova. She is raced by Washdyke trainer David Hutton with Brian (Manny) Sim and Ross Stackhouse, of Ashburton.
She was bought as a weanling at the dispersal sale of Glyn Morris, together with another weanling, a mare and foal.
"The average for the lot was about $600," Hutton said.
Stackhouse and Hutton are also in the ownership of Faites Vos Jeux, who came from the tail of the field at the 700m to win over 2200m yesterday.
Daniel Stackhouse, a son of the owner and now riding successfully in Melbourne, was at Oamaru yesterday.
Now based with the Peter Moody stable, he took the opportunity to return to Ashburton through a three-week suspension.
Jon and Lynley Fergus, of St Leonards, are also in the ownership of Faites Vos Jeux with John and Susan Van Jaarsveld, Tony Hutton (son of the trainer) and Sarah Hutton (daughter-in-law).
Jon Fergus bought the mare out of the paddock as a yearling from Brian Anderton and gave her the name, Frenchfor "place your bets".
"It [the name] was on a cup we give for a punters' competition at Omakau," Jon Fergus, vice-president of the Central Otago Racing Club, said.
A horse of the same name won nine races between 1945 and 51.
He won the Parkside Hack Handicap at Oamaru in March, 1948.
The Sir Galloway-Rose Ileana gelding was trained by Hector Anderton who raced him with W. R. Grey.