I have a KN7000, which I'm keeping. I also had purchased a Korg PA800 6 mos ago, and just traded it for a Roland G-70, In my opinion, I am much happier with the obvious difference in the quality of the keybed and sounds. In my case, I didn't need the dual sequencers and MP3 and I was not very proud of the light plastic keys and case. I don't use MP3, but do use SMF files. There is no keyboard that can match the SMF capability of Roland. I like the E-80, but prefer the G-70 ver 3.00, which is the same engine, as I use my Bose with it anyway. Of course, there is a cost factor to be considered, also.