I don't really think it matters. The shafts are the same, so is the joint. The difference in the butt construction is something i highly doubt you will notice...
At the end of the day it comes down to what design you like.
I'm not a Predator fan, their cues looks bad I think.
The new cue that rain-man linked to is the best looking predator I've seen in a long time.
Predator cues are big in Norway, i see quite a few where I play, not sure how things are where you are playing though...
Biljardexperten here in Oslo do have some predator cues in stock, if your planning a trip to Oslo, Ir's worth checking them out.
I have tried the P and Throne series and could not feel any difference.
It's a bit like Mezz and Exceed. I have a wrapless Mezz, maple/purpleheart and a wrapless Exceed, purpleheart/ebony apart from the rings being a bit fancier on the Exceed, i really can't tell the difference in the way they are constructed and I really couldn't tell you where the $ 1500 price difference comes from, apart from Exceed being Mezz luxury brand, just as Lexus is Toyotas luxury brand...
That is how i see Predators Throne series cues too, they are just pricer than the P series without and real differences apart from looks.