Thanks. I explored all this with my insurance company. I was able to get Breo for a relatively reasonable price. Even generic Advair was going to cost hundreds per month. Last year I looked into generic Salmeterol, and it was going to be over $1000 for 3 months.
For me Advair is way over $300 a month with insurance. (I've bought it in Mexico or Hong Kong for about $50. Good way to justify a vacation, right?). The generic fluticasone/salmeterol in the US is running me about $85 per month.