I'm sorry, did you say US$19 mil for an H160??? That is around US$10 mil more than an AW169 and US$3 mil more than an AW139.
Are you sure about that price?
As for the SP over the S.... Yeah, the SP is a good machine. Heavier, but more capable avionics wise. The S model has the E model avionics and electrics in it. SP is more like a 139 in that it is DC only, no AC.
Astronautics are bringing out an STC this year (hopefully) where you can replace the four small displays with two large format Astronautics Roadrunner displays. VERY cost effective and gives a more modern look to the cockpit as well as allowing for more advanced options to show up on the screen (HTAWS for instance).
Not sure where you are in the US, but find a local with an SP and see how they like it.
Maybe go fly it if they'll let you.