Don't be afraid to use those Dash 8-400's or even invest in some 50 seat RJ's for routes into small markets near your hubs. I'm wearing out grass runways in small cities all over western Europe. You will make more money than you think. It's like running your own regional airline, very profitable. Get a second hub up & running ASAP. This will increase your profit on what you pay for gate rentals. The wide body jets sure are fun, but the operating & maintenance costs eat up most of it's profits. Hope you are enjoying the game!