I have a small airline based in Nagoya, but due to pressure from larger competitors, I'm not really able to add any more routes without over-saturating demand. I found another airport in Japan that should allow me to offer lots of domestic routes without much competition (about 150 pax/route). I would really like to get some new planes for the new hub instead of constantly relying on the used market.
I currently have a mixed assortment of 13 B717/MD90's (I own one of the MD-90's, if that's useful in any way.). I was thinking about ordering E190's or the Bombardier CSeries. The E190's are really affordable and more efficient than the 717's, but there isn't a replacement for the MD-90's, which seat about 150. The ERJ also counts as a medium jet, which should mean a lower cost for my new hub. The CSeries on the other hand, is almost exactly what I'm looking for, price aside. The CSeries is expensive, but it could replace the 717's with the CS100 and the md90's with the CS300. It can also meet my range requirements. It's classified as a large aircraft, though, which means higher start up costs for my new base.
So far, I have been fairly profitable, bringing in 1.9-2.2 Million/week (profit). I know ordering new planes and a new base is going to be expensive, but I feel like it would pay for itself pretty quickly.
Am I jumping the gun right now? Should I open a new base and buy new planes or should i keep ordering old ones? Any advise would be helpful. I don't want to drive my airline into the ground by expanding too quickly.