Well, not since Fitzroy was still with us anyway, all the way back in 1996.
That less than 6000 people bothered to head to Homebush's Skoda Stadium last Sunday for GWS's match against Adelaide is a major concern for the AFL and its 18th and youngest club.
Yes, it was Mother's Day, and yes, western Sydney is not inner Melbourne when it comes to AFL devotion.
But, facts are facts and 5830 fans to an AFL match is a worrying fact.
Crowds near 5000 in number have been regularly attending matches played in country regions by Brendan Fevola in the past two seasons.
The low crowd number from the weekend even saw the usually unflappable GWS coach Kevin Sheedy say something strange when asked about the low numbers.
"We don't have the recruiting officer called the immigration department, recruiting fans for Western Sydney Wanderers. We don't have that on our side,'' Sheedy said.
"We've got to actually start a whole new ballpark and go and find fans.
"Because that's what happens when you bring a lot of people through, channel into a country and put them in the west of Sydney and all of a sudden they build a club like that in one year and all of a sudden they've got probably 10,000 fans and 20,000 going to a game.''
Sheedy's comment was in no way racist, a ridiculous claim made by some in response. It was, simply, an accurate take: that soccer naturally appeals to far more people in the greater western Sydney region than Australian football.
The numbers for GWS from last year aren't much better. Against a competition average of 31,509 attendance per match, GWS averaged 8,117 at Skoda Stadium, a few hundred more at Manuka.
When they played West Coast at Blacktown, just 6,875 turned up.
Membership of the Giants in 2013 is about 2000 up, to more than 12,000, on last year's figure.
The AFL looks to the NFL for many things, and maybe it should have paid attention to why Los Angeles, the USA's second most-populous city, doesn't have a football team, and hasn't since the Rams in 1995 followed the decision made in the previous year by the Raiders to head elsewhere.
Just because Sydney has Australia's largest population, and just because the greater western Sydney region is the fastest growing region in the land, doesn¹t mean the AFL needs to be there.
The NFL does just fine without being in LA.
GWS was never intended to establish an instant foothold. AFL chief executive Andrew Demetriou, on the eve of the club¹s first AFL match in 2013, said: "My counsel to everyone is to be patient. This is a 20 to 30-year generational strategic move and you will not see the benefits of this football club's efforts for a long time."
That is an understandable outlook. But really, does football have the luxury of waiting 30 years for something that might work?
Especially when establishment club Melbourne cannot, right now, guarantee anyone that it has a viable 30-year future?
Establishing GWS is the most difficult task ever undertaken by the AFL.
Yet already, people crucial to the operation are second-guessing original decisions, mainly the retreat from the Blacktown region, the true greater western Sydney region, to be closer to the city.
When the GWS project was confirmed in 2010, the trumpets were out blaring the fact this club would be based in the true heart of greater western Sydney.
GWS could have done without the Israel Folau gimmick too, which cost millions of dollars of football industry money and was embarrassingly aborted last year.
Folau becoming an even remotely successful AFL player was never, ever going to happen.
GWS has a Skoda Stadium match scheduled against West Coast in round nine.
Another sub-6000 crowd would increase the anxiety.
