Alex Luz and his wife Priscila Luz of Brazil shop on Wednesday November 16, 2011 as the Bal Harbour Shops tries to keep pace with threats to its market share, the most successful shopping center in the U.S. is bringing in new tenants. PATRICK FARRELL/MIAMI HERALD STAFF

Robi Tarrab of Argentina enjoys a cigar at Makoto on Wednesday November 16, 2011 as the Bal Harbour Shops tries to keep pace with threats to its market share, the most successful shopping center in the U.S. is bringing in new tenants. PATRICK FARRELL / MIAMI HERALD STAFF

A shopper walks past an ad outside the location of the future Stella McCartney shop on Wednesday November 16, 2011 as the Bal Harbour Shops tries to keep pace with threats to its market share, the most successful shopping center in the U.S. is bringing in new tenants. PATRICK FARRELL/MIAMI HERALD STAFF

John Schneider and Velina shop on Wednesday November 16, 2011 as the Bal Harbour Shops tries to keep pace with threats to its market share, the most successful shopping center in the U.S. is bringing in new tenants like Bottega Veneta. Patrick Farrell / MIAMI HERALD STAFF

A shopper checks her phone outside the display window of Marc Jacobs on Wednesday November 16, 2011 as the Bal Harbour Shops tries to keep pace with threats to its market share, the most successful shopping center in the U.S. is bringing in new tenants. Patrick Farrell / MIAMI HERALD STAFF

Shoppers walk past the Gucci store on Wednesday November 16, 2011 as the Bal Harbour Shops tries to keep pace with threats to its market share, the most successful shopping center in the U.S. is bringing in new tenants. PATRICK FARRELL/MIAMI HERALD STAFF

The Bal Harbour Shops are trying to keep pace with threats to its market share, the most successful shopping center in the U.S. is bringing in new tenants. PATRICK FARRELL/MIAMI HERALD STAFF