I have been searching for suits at the different retailers and noticed that most have the same suits but some have different prices. A Navy chalstripe Zegna suit was $1745 at Barneys, Saks and Zegna boutique. Yet it was $1695 at Bergdorf and $1795 at Niemans. Isaiah suits were $2299 at Barneys yet $1999 at Saks. Are they the same suits or are they different suits. I assumed everyone just sold everything at retail, unless it was during the big sales.