Gotcha lurch -- I see where your coming from. I guess I get the feeling that because the proto to production time has been so long on this, the p3 won't be made or broke by marketing right now.. it's just a slower and continuing process that will take time to reach people thru shows and games in the wild as more games for it are also made.
I think some of the cold response on pinside is due to people either not having a chance to play, needing a big hit game to be converts, or others that are still traditionalists. But I don't think the P3 needs quite the hype as a new single game launch where you hope to sell a ton of units right away.. p3 is able to be a long term product.
All that said, more marketing never hurts and could help with early orders. I'll be interested to see the pinside response when someone nails a licensed theme on this platform