The 45 and the 65 I linked to are the most current introductory Panasonic Bluray decks, both introduced in 2010. Last month Panasonic announced the DMP-BD75, the only non 3D bluray remaining in their soon to be released line up, which is said to start shipping in the spring (2011).
In A/V reproduction accuracy, there IS no concept of "accounting for personal taste/preference". As art consumers we don't "pick" the level of bass, nor the tint/brightness of a scene's sky, any more than we pick the ending of a novel or Mona Lisa's type of smile. "High fidelity" means "high truthfulness", faithful to the original artist's intent: an unmodified, neutral, accurate copy of the original master, ideally being exact and with no discernable alterations, aka "transparency".