People on this site are so aggressive.
Beyoncé has every right to not want to release her album physically first week, but retailers also have every right to refuse to sell it if they feel they've lost business by not being allowed to be one of the first retailers to sell it. It's nothing to do with 'being pressed over Beyoncé', it's all to do with them losing millions in Revenues if Katy, Gaga, Adele, Rihanna etc etc follow her lead and stop selling physicals. Them refusing to sell Beyoncé will make Katy think twice before making her album iTunes exclusive for a week. Learn some business.
Also, leaks don't kill album sales, releasing crap albums and allowing people to download the 1 or 2 tracks they like individually kills album sales.