Rebbi,
As long as you go into this venture with the right frame of mind--you are willing to experiment and accept an unfavorable result and willing to accept a bit of financial loss if the choice does not work out--I say by all means do the experiment. It might well be the case that you will enjoy the attributes of the low-powered SET with 95% of your music and will only have to accept some compromise with playing a few recordings. So many factors are at play that it is hard to predict the result and trial is absolutely necessary.
As long as you go into this venture with the right frame of mind--you are willing to experiment and accept an unfavorable result and willing to accept a bit of financial loss if the choice does not work out--I say by all means do the experiment. It might well be the case that you will enjoy the attributes of the low-powered SET with 95% of your music and will only have to accept some compromise with playing a few recordings. So many factors are at play that it is hard to predict the result and trial is absolutely necessary.