I probably would have been interested if I hadn't picked up the 16GB iPad 4 for $360 (after $40 credit at Rakuten.) I wish it had been 32GB but if you jailbreak you can get one of the usb/sd card dongles and easily access extra storage space that way with ifile.
Also at this point it seems like iPad 4 probably makes more sense than iPad 3 with the processor being twice as fast. Once iPad 5 is out prices should drop even more on iPad 4.
Depends though - if you already have two or three iPads and a couple of iPhones, all with the 30 pin plug, this is the better deal. New connector sucks. Adapters for all the docks and new charging cables.