As I said earlier, I think the more out there the better it is and the faster time we have to get them in places. As far as arenas are concerned, in the city of Ottawa alone there have been multiple instances, even this year, of people being resuscitated at hockey rinks on the ice with their equipment on. They just cut the uniform off and shocked them right on the ice and got them back in those cases.
The issue with having static ones is with who is responsible for picking that up from the community centre and taking it somewhere else.
The more there are out there the better, because the better chance of survival there is by having one as close by as possible. Again, I don't think it necessarily takes away that element of having mobile ones out on the street as well, unless you're going to have somebody who would go to the arena and pick it up, but again, that would mean a time lag in getting it to the scene you need it at.