Best Cartridge for $1000-$1350?

I have been playing with the Art 9 and Dynavector 17D3 on my Technics 1200G and for me the Art 9 sounds better overall but the Art 9 has only 50 hours on it now still need more break in time. The 17D3 sounds way better on Rega Tables like my Rega P6 or RP8 that I plan on selling on here soon with the Dyna 17D3. 
Also using the Manley Chinook SE with the Art 9/1200G with my Yamaha A-S3000 and Dynaudio Special 40's speakers. Overall tone of the ART 9 is just awesome when I hear piano strikes coming from the Art 9 they sound very natural and clear not so much with the 17D3 on the 1200G.

We have so many info about ART-9 on this forum, but the world of cartridges have so many better / different options including some rare ones. As for the Audio-Technica cartridges i would advice every ART-9 owner to compare it to the AT-ML180 OCC or OFC MM cartridge which goes for much higher price than ART-9 and the reason is obvious (stylus replacement).

Now finally after 190 hours play my AT-ART9 slightly outperforms my AT-ML180/OCC sample, on the Trans-Fi linear tracker. The high register is a bit more refined, so seems I get more musical and natural performance from the ART9. My reference MC so far.

My next MC to evaluate will be the Highphonic MC-R5, can hardly wait to begin listening to this great vintage LOMC. It has been hailed as one of the finest MC carts so it will very interesting if the modern ART9 can hold its position. In my system.

No it can´t. Now with the vintage Highphonic MC-R5 no more listening fatigue which has been an issue with that ART9. Additionally the MC-R5 can be listened on higher volume level without increased feel of distortion I noticed with ART9.
Highphonic performs very dynamically and very cleanly, less artificial sounds and more music, and tracks all the Telarc 1812 Overture cannons with ease at 1.1 g. Absolute MC reference in my system today.

Now finally after 190 hours play my AT-ART9 slightly outperforms my AT-ML180/OCC sample, on the Trans-Fi linear tracker. The high register is a bit more refined

@harold-not-the-barrel  interesting, tried 100k Ohm loading for your AT-ML180 ? If you loaded it at 47k Ohm then with 100k Ohm you can improve high register of your AT-ML180 MM