These are standard prices on this side of the Great Lakes. The only ones with lower prices are the ones who locked in a multiple year contract, such as Wazee Sports, very near the deep site for training.
Maybe consider making the trip on our side then for cost savings if you plan on a dozen or heliox/ trimix fills for this dive season. The worst I've seen it up here price wise was $3.00 per cft in 2019 and when it was that high nobody had any.