That's the thing, BBB. We're in a fairly good position month to month (same route as you, but formally) but we're able to clear all the debts and have a bit (a lot, comparatively) left over if we sell now. Granted, Wed have a lot more in 7 years time when we're free.
We're just not keen on being handcuffed if I earn more some months and being stuck in the house for the next 7 years.