Atrium and Famous Friends NYC carry them (Nudies). Their prices range a LOT depending on what cut, type of denim and wash you get. For example, Regular Ralf Dry Selvage is about $190 USD... the vegetable indigo ones are in the $250 range.
Maybe T4Phage can answer this best, but Atrium stocked some Nudies that were about $450. I think these were the dry veggie selvage or something to that effect. Non-sequitur: I was at Scoop today and saw a new PDC cut, the Marlowe (I think the model is BMX). I didn't have time to try them on, but does anyone know what distinguishes them from, say, the GTO? They looked really similar, with only slight variance from the 3-year wash.