If you want to take things one step further and use online formats to reduce the number of physical classroom days, you will also be able to reach people with your services who do not live in your immediate area.
As a participant, I’m more likely to be willing to travel a long way to attend a course twice than four times! A 100% virtual blended concept, where physical classroom courses are replaced by live online training sessions, is also conceivable depending on the training objectives and the target group.