i’m not sure you can get those cartridges like the stanton today.
when you talk about "AT-ML150 with MicroLine stylus"
you mean something like this?
You can get every cartridge from cartridge collectors on audiogon, including some extremely rare units, people even swap cartridges from their collections, but it’s a private deals. I have owned each cartridge from my recommended list, how do you think i got them? Stanton or Pickering are not the rarest, but the condition is important. I am not that old as many audiogonners who bought them when the price was low 10-20 years ago, but it’s still possible to buys nice vintage MM cartridges even in NOS condition (that’s my main interest). I am trying to document each cartridge from my collection, you can check my pictures below:
Stanton 881s (Alluminum cantilever / Nude Stereohedron stylus tip)
AT-ML150 (Beryllium cantilever / MicroLine tip )
Victor X-1IIe (Titanium Cantilever / Elliptical tip)
Grace LEVEL II BR/MR (Boron Cantilever / Micro Ridge tip) - this one is very rare
ADC TRX II MI ( Sapphire cantilever and Vital II )
AT-ML180 (Gold Plated Boron Cantilever / MicroLine tip) - also extremely rare
AT-ML170 (Gold Plated Boron / MicroLine tip)
AT-20SLa - also killer MM
Glanz Moving Flux cartridges - on of them is the rarest 61 model
Victor X-1II (Beryllium / Shibata)