For those who have have been hoping amazon would have an acrylic platter via prime, now is your chance. Two places just posted a bunch up on amazon with prime shipping. $125, not a discount but it's available on amazon and I know people have been looking.
http://www.amazon.com/s/ref=nb_sb_noss_2/189-3453542-2624154?url=search-alias%3Daps&field-keywords=Acri-plat