There seem to be only 3 others for sale besides mine at the moment, and 40 mil seems like a bit of a ridiculous price. So what range should I really be looking at to try and sell this?

I sold one of them to an item hunter for 20M quite awhile ago. They used to be popular to use to get an achievement or special drop back when it was rewarded on the first win. But since the special drops occur on the 5th drop now, they are pretty obsolete. I can't think of any drop that would be worth 5 sporks, even if they only were 20M.

Also I've heard time and time again that Keith hates them. They haven't been available in the crystal shop or anywhere else for years, and I don't expect them to come back anytime soon. So they are really only good for item hunt and collectors, but I don't expect them to deflate anytime soon.
I think 30-40 million is about right, it's just a matter of finding someone looking to buy.

Thanks for the input, I suppose I'll just keep it hanging around in my shop till I find a taker! haha

You have a few of these, how much did you pay and/or want to sell for?