Practically every high school and elementary school has a basketball court--that's probably 10,000+ in Canada. It doesn't count any associated with public parks, etc.

Contrast that with ice rinks which are probably about 1000. You have at least a factor of 10 differential--probably more. In addition, ice rinks are vastly higher outlay to keep running.

So, that means real money to use the rink when using a basketball court is, at worst, a nominal fee. Longer travel to play against another team if you're in a league. Fewer coaches which need to be paid more. And, your practice times are in the "dead zones" from 11:00PM to 6:00AM in the morning as the ice rink is looking to make real money from 3:00PM to about 11:00PM.