Hey David,

Hmmm... I'd say it depends on how much you plan to use TACA in the coming year. There are some routes out of EZE where TACA makes much more sense, i.e. to LIM. If you think you will use TACA later, I'd say to go for Silver now, because at the very least, the status will allow you FC check-in and a few bonus miles. Personally, I don't see the difference between OnePass Gold and Platinum as being that great: 125% vs. 100% bonus miles, and with both you can do companion upgrades. In another post, I saw you were about 100% on upgrades as a Silver. So, I don't think you'd lose out on upgrades as a Gold.

On the other hand, you may be able to fax your credentials to TACA and ask them to match your status on COPA. That will instantly put you at Silver-- or maybe a higher level! And as an added bonus, if you do end up flying with the TACA Triple miles promotion, you would earn Elite bonus miles as you do it.

Good luck!