The Apple Cup game in Kennewick set the PAC-8 attendance record at 4,742. The Saturday game was empty from what I saw, but Tri-Cities had a game at 7. The guys calling the Friday game said they should play it here all the time since they mostly play in Seattle. They could have it on the off nights at the 5 WHL arenas at 7 on a rotation.
Both are a long way from adding the sport sadly.
Also, the Friday game was 10-0 Huskies. That might have kept people away from the game on Saturday.