I'm sure that Mosaic Records has been in the limited edition boxed set game long enough that they have learned a few things, though it is likely impossible to predict whether a set will set out before the lease is up. I'm sure the owners of recordings they would like to issue are holding out for more money in many cases, while it is always nice to have the music packaged in a more intelligent manner vs. scattered over numerous CDs and LPs, with detailed liner notes and period photos missing from earlier issues. It seemed like they frequently had sales on sets of Capitol recordings, so maybe they are shying away from further releases from that label. Also, by producing only 3,500 sets, they may be lowering leasing costs and taking on less risk than they did with larger runs. This is all guesswork, I've never run a record label...