This change affects both the co-branded AmEx cards (e.g. Delta AmEx Reserve) and the Platinum/Centurion cards: No more free guests at SkyClubs effective 1 May 2014. https://www.delta.com/content/www/e...aircraft/delta-sky-club/news-and-updates.html AmEx holders will pay $29/guest/visit effective 1 May 2014. Buying a ful membership which includes guest access will cost $695 effective immediately. Later in the spring individual memberships will go on sale at the old rates. The only winners I see with this SkyClub rate hike are single Diamond Medallions who never travel with friends or co-workers.