It was only November when these things were going for $90. Remzi let me know that Expansys USA has a deal going on for $36.99 for a 16GB Kingston MicroSDHC card. They do charge shipping but to my address it was only $2.50. It comes with a SD card adapter but you will need a MicroSDHC card reader to connect it to your computer directly without it being in your Berry.
$36.99 is a pretty good deal considering the fact that Amazon is selling a SanDisk version of this for $61.49. If you do not need 16GB you can pick up a 8GB Kingston MicroSDHC card for $18.48 with free shipping.
Let me know if you find a better deal! On the other hand it looks like SanDisk may be shipping 32GB cards in the near future.