Depending on your location - if you are EU and you manage to get some nice cheap F flights, you wil be able to get OW saphire quite easy. You would have to pay a bit more for some flights (world traveller plus) but they have benefits of their own.

It is worth calculating it. Also you might consider to get 'easy' status with BA for lounge access and check in and then use this the year to build up status on aa.

due to the travel pattern I would also look at how much miles you can earn.