If booking frequent paid business class trips to US, I would look at using the AA scheme rather than aiming for P1

You could be earning enough points per trip ( if booked on an AA flight number ) to almost get a free business class flight to the USA due to the points earning being tied to spend ( could earn 75,000 points per trip and 80,000 points needed for a business class one way to US ) - do 4 trips in a year and get 4 x systemwide upgrades, so can do 4 of the flights in 1st class if routed on a service with 1st

Seems a lot more valuable than a bottle of wine