The 3 year warranty of the Marantz is a big selling point.
I experimented with both analog and optical on my current player, which I bought in 2000, over the years. I have a Pioneer VSX-91TXH, so using optical did sound better than the analog connection. But again, the current player is 12 years old! Re: the Marantz, a common theme to many reviews I've seen is the improvement in sound and quality of music reproduction that people notice.
I guess it'll ultimately come down to how much I want to spend at the end of the day.
I like my CD collection and don't plan on going all-digital any time soon. When I realized my current CD player was done and I started looking at potential replacements it was surprising and disappointing to see how limited the selection of CD players/changers is these days. Pioneer doesn't appear to have updated their players in a decade, the Sony I'm considering is their newest model and that appears to be at least 5 years old (and its the only "current" model they sell). Even the Marantz appears to have been introduced at least 2 years ago.