I thought about an extra sub but I really don't have any more room in my condo for another. I'm not in a rush and don't "have" to buy something. I just had some extra cash from my taxes and thought of upgrading either the sub or to the 80's as I've always wanted both. I'll be sitting on it for another month so. If I hadn't already booked my trek through India in May I would have used the extra cash for a safari in Botswana.