AirportPlanner
I agree with you that the 72 gives you more potential in terms of gross revenue. However if it enables you to enjoy, say, 15% more revenue and yet your costs are 20% greater than on the 42 that hasn't helped your profitability. There are obviously some routes where the smaller aircraft is better suited and I think CFR and GRQ are among those. The smaller aircraft also enables you to offer greater flight frequency which can be a major contributor to a route's success.