I've noticed them on sale recently. The retail is about $250. A good price would be around $214 with free shipping. Pay close attention to model numbers when you shop. Some outfits will advertise FF III complete and, if you don't buy by the model number, you might not end up with what you intended to buy. For example, if you want a Fast Fire III with a three minute of angle dot, which I recommend, with a picatinny mount, you'd order a model number 300234.
Be careful of those numbers...