I get it. I've never considered an automatic. All my toys are three pedal. That said, the 456 is less loved, perhaps for the back seat but it is such a beautiful car- those lines are perfect, even almost twenty years later. It is hard, however to find a one -two owner, well maintained example. There was one on eBay- original owner etc. sold for a song really. I think the prices are soft due to maintenance cost or perceived liability of the transmission, and demand. It's a lot of Ferrari for the money. But as you said, there's nothing more expensive than a cheap Ferrari.
In my case,interest is driven by the back seats- and my two small children. Sunday drives to get bagels can take only one in the 430. And as others say, the 430 is more of a slot racer than a grand turismo. Sometimes a GT is more appropriate. But then the 612 is such an upgrade. The 456 seems too close in style to my wife's Maserati QP.
Perhaps because of those lines, I think that the 456 has a chance at being an iconic Ferrari in the future, perhaps with a cult following, in a way the unloved (less loved) 365/400/412 are not.
Thanks for sharing. Check out the buyers guide here. Ferrari Buyer's Guides - Ferrari Life
You will have to upgrade I think to download.
FYINThere is a nice 456 ( overpriced IMHO) in Naples. Again no affiliation.
Good luck. Keep posting and welcome to FL.