1K sleeper MC cart?

I have the AT art9 , mc cart, i am wondering when you say rebuild the cart you mean  re-tip? If so it was my understanding you cant re -tip this cart, perhaps it means you cant do it yourself, but have to send it in, anyhow if you get this rebuilt i sure would like to know the end result, price paid for service and sound of cart after work, and the company name ,tele# etc. I got about 300-400 hrs on mine so i got lots of time before it poops , but accidents can happen too. BTW i didnt have a warranty on mine , i bought it for barely over 900.00 new w/o warranty

I've had both a Dynavector XV1-S, and Benz LPS done by Soundsmith.  Both time results were the same, as good as new.  I think if you search here and other places you will find many others who also had great results.

I own two med to high output cartridges that sound really nice. Benz Micro Ace SM, and Soundsmith  Carmen MKII. Both are in the $1k range or less.

I sent my benz for a retip and got a big glob of glue on the tip of the cantilever.  does not sound good.  I would not do it again

I've sent many cartridges to SS. I agree, they often don't sound exactly the same but they have always sounded better. And, not by a small margin.