Originally Posted by
oohaahouch
it gives 5% on pharmacy and supermarket - no cap
I think Prasha meant "Why convert and not app" rather than "Why get this card"
So probably basically credit score (or rather avoiding a HP). Usual reason NOT to convert is because you lose bonuses on the new card, but in this case there aren't any.
Applying gives a new credit line, which with other issuers might hurt credit score, but with Amex can be backdated so not a problem.