We just received a reliable tip that Verizon has officially discontinued the 32GB flavor of the Galaxy S III, among other Android handsets. Final shipments of the 32GB GSIII have already been received from Samsung, meaning you can expect the remaining stock to dry up over the next month or two (so you'll be able to find it for a while yet). The 16GB Galaxy S III will continue to be available.
According to this document, the HTC Rezound is now officially dead and gone, though it's been off of Verizon's website for some time now. In addition, the DROID 4 and original DROID RAZR are also on the way out, with final shipments having been sent for both handsets.