Absolutely.
Your existing keyboard is the same today as it was yesterday. Just because a new model appears, nothing has changed for something you are entirely happy with. The 6000/6500 is a great product and if I change I will be sorry to see it go because it has enabled me to produce better results than I have been able to in the past. I will probably be more sorry to lose the 65 with both cards than any previous machine.

I have said for a long time that these machines are better than my ability to play them.

But many of the technological advances are designed to cut down 'hassle' time eg waiting for loads to appear, finding the right floppy etc which get in the way of making music.

Some days are a struggle to get things right. Other days everything just flies and the sequence or edit almost makes itself. During these times I get frustated with saving, loading, finding that edit done before, quickly tweaking this and that until it is just right. When the creative 'swing' is in full flight you just want to get on and do it. So I look for the facilities that will minimise this 'down time' and maximise the creation process by getting rid of button pushing hassle.

The 7000 is looking good on this front to me so far, but as I said I am waiting to see what the samples and sound are like in front of me...