Wasps have been attracting average gates of over 20,000 since they moved in to the Ricoh Arena in December to become Coventry City's landlords.
The figure is more than double the home crowd for Coventry games since the Sky Blues returned September- and has exceeded Wasps' wildest expectations.
But the club, who played in London for the first 135 years of their existence, admit that there is plenty of hard work needed to keep their new fans coming back.
BBC Midlands Today sports editor Nick Clitheroe spent the day behind the scenes at Sunday's match against Gloucester, Wasps' fourth straight bonus-point Premiership win at the Ricoh.
Having also drawn 20-20 there with Leinster, a result which secured a European Champions' Cup quarter-final place, Wasps remain unbeaten at their new home.