A few weeks back I posted that Tauba Auerbach's [2,3] had sold out, which apparently isn't the case. Not sure if I had bad information or if Printed Matter has subsequently made more copies available. Either way, you can still buy it here for $550. I note that there's a limit of 5 per customer so presumably dealers were attempting to buy on spec and flip the title in a few months time. ABE already has copies listed at more than double the Printed Matter price.