Harking back to previous question I raised in this threat, related to the current question:
If both BAEC Gold/Emerald and AA Plat/ EXP are within reach, but AA Plat/ExPlat requires co-pay for the status match (about 200$ IIRC from what Gardyloo posted) would that still be a worthwhile target? I seem to think it would be, given the value of SWU. What are the key differences, other than Avios / AAdvantage miles, and the SWUs?