I have had an xs6 for about 9 months,and i really like the phrases,sampling option and all the other bells and whistles-even though have not used all of them to the fullest.I used to play the 1 st version of the S90 when it came out in the late 90's.had played an S90 before i got the xs,still think the xs was the better deal.The xs is a BIG piece of change,but how often are you gonna buy a new board? If it were me,if LORD allowed get the XS 7 or 8.At my former church,MOM was considering getting a second xs 6(about 1500 used) and a cheap 88 controller(3-500).That way he had an 88 wtd.,could travel light,and use a 88 note wtd. clavinola that the church had.He got a deal on a Roland RD700 for $1100 when the new model came out.