Should I buy a P8000 or P9000

Hi,

I am a photographer purchasing a P8000 or P9000 for personal use with Cone Inks. I don’t do production printing for other clients, and I have to date worked exclusively with K7 neutral inks since they first became available. If I switch to Piezo Pro inks, I would not be using the gloss or photo black ink channels.

Is there any reason to purchase a P9000 over a P8000 in terms of head longevity or durability of the printer? BH just offered a $1000 discount on the P8000.

Thanks, Drew Harty