Its up to you if you want to sell it. Put it on ebay and you could be surprised how much it goes for. I also have an Australian Fraggle Rock video but I'm not selling it as its sadly the only piece of fraggle rock memorabilia I have. I picked it up for about $1 in new condition too, in Sydney.
By the way, its great to have another Australian here. Feel free to join our Australian muppet forum at
www.muppetsdownunder.com/forum its a bit closer to home and we want as many Australians as possible there! The more the merrier!
Hope to see you there!