You know just to give my 2 cents here.... To base the purchase of a keyboard like the kn7000 on whether or not the vocal input harmonies are decent is absurd. If it really matters to you- do yourself a favor and buy a dedicated vocal proccesing unit. Even the new pa1x has an "optional" Tc Helicon processor. You have to buy it seperately.
Buy the 7000 because of the Sound samples- The Ease of use, and the SD card capabilites.

Also- All this crap about 96ppq is dumb as well. If you can tell me the diff between a 95th note and a 96th note let me know.... I'll be sure to have whatever you're smoking.