Originally Posted by
Boraxo
Not to mention that a premium ticket will get you into many of these lounges, or perhaps mid-tier status. AmEx lounge requires a card with a high annual fee or a nice per person charge. Compare to UA lounge passes which I've seen go as low as $7 on ebay.
With the abundance of Amex Plat members and the fact that it's SFO, it's won't be hard to find someone to guest you (Amex Plat cardholders can guest 2 people).