JZ Amethyst vs Neumann TLM for male vocal and acoustic guitar

I've gone down the rabbit hole the past few days but still can't decide if I should get the JZ Amethyst $770 or finally get myself my first Neumann.

I mainly record tenor/baritone male vocals and acoustic guitar. I prefer "warm" mellow tones, think of Neil Young, Jeff Buckley, and Queens of the Stone Age.

I'm stuck between the JZ Amethyst and these:

- TLM 102

- TLM 103

- TLM 107

- Royer Labs R-10

I've read great things about Amethyst, but still can't decide, and frankly I can't hear a dramatic difference when I listened to the tests on AudioTestKitchen.

Any help would be appreciated.