In our particular case, Visa has offered us an incentive to develop Visa debit. However, we've not elected to roll it out yet because we're not comfortable right now that the price is appropriate for merchants. When MasterCard introduced the price for Maestro, we had some serious reservations about even offering it to merchants. But I have to give them some credit. They've since responded, I think, very favourably and have acknowledged that they're going to bring it down to the Interac levels, which obviously right now are virtually free.
On May 26th, 2009. See this statement in context.