upsampling CDP's for $1500? Big difference?

My Raysonic 128 offers optional upsamping via the remote, but it sounds worse to me in upsampling mode. Most upsampling CDPs don't offer the option, so it's hard to tell how much benefit there would be, if any.

I also have a Raysonic with optional upsampling. Unlike Dopogue though I find that the upsampling can, on occasion, sound better than 16/44. This usually occurs when I play old(er) CD's. In 16/44 they can sound bright/edgy and the upsampling mode smooths it all out and makes it much more listenable. Other than that I also prefer 16/44. I'm not sure I would like a CDP with only upsampling though. FWIW.

Great info. Thank you. It's nice that the Raysonic gives you the option to switch back and fourth. I was actually reading about them earlier. That looks like a very nice player indeed.