ALL FOR ZAC: Gilt Groupe’s best customers may relish a bargain, but that won’t stop them from coming out to meet Zac Posen and view his new resort collection up close. Annie Churchill, Zani Gugelmann, Marjorie Gubelmann, Alex Lind Rose and Alex Kramer are some of the better-known invitees who have RSVP’d to a private reception Monday night following Posen’s resort show, which Gilt Groupe is sponsoring. Does this mean the $80 million online private-sales company could branch into selling current-season merchandise? “Full price is something we talk about as a possibility with a lot of designers,” said Alexandra Wilkis Wilson, who did stints with Bulgari and Louis Vuitton before starting Gilt Groupe with eBay veteran Alexis Maybank. But, she added, “That’s not our focus. We have no definite plans.” This is not the first designer show Gilt Groupe has funded, but the company has a special relationship with Posen. Gilt Groupe launched with a sale of the brand, in November 2007.