Giggs feels it could be a key moment in the title race but admits it's too early to say ahead of a tough assignment at Tottenham next weekend as Spurs will be smarting after their derby-day hammering by Arsenal.
"We'll know more at the end of the season," added the Welshman. "The pressure was on us today. Obviously, City played yesterday and won quite easily but Norwich is a tough place to come and we've managed to dig the result out. It's an important win for us."
To see Giggs rejoicing in front of the away fans after capping a landmark appearance at the death was evidence, if any was needed, of how much pulling on the Red shirt still means to him.
"You've seen that from the celebrations right in front of the fans," he recalled. "And late on. It doesn't get any better than that. It's a feeling that won't change whether you're 17 or 38 like I am now.
"To play for such a great team, a great club and the team I've supported and grown up with, it's obviously special to play 900 games. I'll keep going and hopefully there's more goals to come."