Recently, Angie and Bob had a homeowners policy with a dwelling limit of $$1$ million, which reflected the full replacement cost value of their home as determined by their insurer, and an endorsement that provided extended replacement cost of $50\%.$ At the time of the loss, the homes actual cash value was $750,000.$ A hurricane wiped out their home, along with hundreds of others. Due to demand surge, it ultimately cost $2$ million to replace Angie and Bob's home. Ignoring deductibles, and assuming Angie and Bob will have met all relevant conditions, what is the insurer obligated to pay Angie and Bob?