Buy whatever you are attracted to and think you might enjoy. You can always sell off later if you make a poor decision.
Software is the only reason for buying high end equipment, get enough that you can loose yourself in the joy of diversity that a nice library brings.
I'm an LP guy but if you like CD I would grab all you can while they are available.
Better still, get the "like new" ones at local half price CD stores. If they are not damaged they sound the same and you can justify buying artists that you're less certain of.
