A 737 will make it to BDA, just not with a full set of seats. But an airport like CYYT/YYT is only 2100 nm away, and will reach everything but the west coast. Fly through CYYG/YYG, and you can even reach LAX with your longest leg being 2616 nm. A 737-500 will do 2610 nm with 120 seats. Change the seating to 102/15, and now you can reach every US airport not in Alaska or Hawaii without seats being lost. Heaps of 50 seat routes there. You'll only have LF of 40-60%, but that will steadily increase over the next 12 years of gametime, and 40-60% should still turn some profit. It'd be a risky expansion plan, but I'd probably still be doing it, particularly if there were lots of shorter routes to Europe, North Africa, Turkey & the middle east put on a 7 day schedule, and particularly if I needed to upgrade a dozen old 727 & 737-200s anyway.