MX is upping the perks and fees on its platinum cards. For the first time since 2021, American Express unveiled updates to its flagship card with the annual fee jumping nearly 30% from $695 to$895. The hike kicks in at renewal.Now, to justify the cost, MX is stacking on perks. It says top $3,500 a year, including$600 in hotel credits, $400 in dining credits via resi,$300 in Lululemon credits, $200 towards an Aura ring, plus things like lounge access, TSA Pre-Check, and hotel status perks. The shakeup com ...