Word on the street is that Hollinger has combined their California and Virginia offices all to Fredericksburg, Virginia now and with it prices have increased.
In the mean-time I've figured out how to make proper fitting 3 1/2 disk sleeves out of 8.5x11 acid free paper. You can fit two sleeves on one sheet of paper. An added bonus is that the scraps fit our barcodes and can be used as labels.
For now I'm working on a folding guide in case getting sleeves from Hollinger becomes difficult. If anyone needs it DM me!