The McAlpine supremo joined the applause as manager Peter Jackson received a deafening ovation when introduced before Saturday's 2-2 draw against Cambridge.
The 10,319 gate was the second highest in the division topped only by the 14,675 who saw Hull beat Darlington 4-1.
Mr Davy, who watched his Giants draw 30-30 against Widnes in Super League yesterday, was delighted.
"It was great to see over 10,000 people there. They created a tremendous atmosphere and if we can keep that sort of crowd it will put us in a very strong position," said the man who finally completed his takeover deal on Friday.
"I know that's a big ask, but with comfortably over 6,000 season ticket-holders we already have a solid base and every additional supporter makes a huge difference.
"There are genuine signs for optimism and enthusiasm and hopefully we can carry that into tomorrow's Carling Cup-tie against Derby and get a win under our belts.
"Cup revenue is important at any time, but this season it's critical because of the excellent signings we've made and the squad we are financing - so we do hope for a big crowd."
Town have cut prices for the first-round match as Jackson seeks what would be only a second victory in the competition - formerly sponsored by Worthington - since Kenny Irons' goal beat Chelsea four years ago.
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