The Cabazon (Palm Springs) Outlet once upon a time, frequently had RLPL.
If I am not mistaken - most of this Inventory now ends up In NY and Saw Grass in Florida.
EBay is your best bet for discounted RLPL Suits.
Between 2004 and 2007 I used to visit the Cabazon outlets with some regularity to shop at the A-E outlet (before it closed). I frequently included the Ralph Lauren Outlet in these visits but never saw any RLPL suits that I can recall. Everything seemed to be typical "outlet" merchandise.