I have one of the tube models (Model Eight), as well. It sits about two feet from the computer I'm using right now, and guess what gets played a lot.
http://antiqueradio.org/KLHModelEight8FMRadio.htm
I don't really watch prices of things. I paid a couple of hundred bucks for mine a few years ago and felt like I was paying top dollar. One reason I felt generous is that the seller drove two hours to deliver it.
It's hard to choose between them, but if the house starts on fire and I can only save one KLH, it would probably be the Model Eight.
Phil Nelson
Phil's Old Radios
http://antiqueradio.org/index.html