Looking for some Rolex pricing insight.

[Watchmanaz]

I purchased a 116660 and couldn't be happier with it and got it for $9000 shipped and it's a MK1! What i am wondering is why the Deepsea is so under priced compared to the pricing on the other SS models that i feel aren't the same caliber as the 116660.

Hope you guys can enlighten me as i have been out of the watch game for a few years and my interest is peaking back up again.

Thanks