This is my point. There's the "lays in the mix well", warmer
sound of the 60's Alder/Rosewood, or the more in your face,
grindy, articulation of the 70's Ash/Maple Jazz.
Can you make one bass do both things well, or is it always a
compromise so that (as many have stated) you need one of
each?
Yes you can, but you would need help from a pedal or something. I personally wouldn't spend money buying 2 Jazz basses when I could use eq or a pedal to get what I need. I'd rather get two basses that are totaly different in looks and sound, but that's just me