Ortofon MC Cartridge Problems ??

I am having "major" issues with my MC cartridge...keep loosing the stylus??? 

I purchased a VPI Prime Signature (B stock - lacquer rub during initial shipping) at a great price...went back and forth on which cartridge to add - ended up upscaling & getting the Ortofon MC Quintet Black. Had to wait for the new cartridge for several months...I left the turntable at the Audio store until the system was complete. Had the entire system mounted at the store and checked. Took delivery and set the turn table up at my house - as I placed the arm on the system noted that no stylus attached to the cartridge? A little bit in shock - I called the audio store. They were excellent - they brought a brand new entire Ortofon MC Quintet Black (no cost) to my house (4 hr drive each way) and mounted it for me while I watched over the shoulder...they indicated it was not the first time seeing this. We played several albums, rechecked the mounting, tracking force, azimuth, alignment, tightness of the screws...all spot on. The anti-skate set up I was skeptical about - but after a demonstration of both methods - it worked...

The Quintet Black S has a Nude Shibata diamond, mounted on a high-performance Sapphire cantilever...the set up is extremely small. My table arm is the standard 3d printed carbon arm that came with the VPI table... JMW 10 3D tonearm. The table and system is build like a tank and although the arm is on a single needle pivot point (takes a little getting use to) - the cueing system lowers and raises gently without issue. My only concern is on the last track on the each side of the LP the arm/cartridge does track inward toward the spindle. I am extremely careful with the entire system. Before an album is played it goes thru the ultrasonic cleaner. I played about 25 albums over the course of a few weeks - and guess what - the entire stylus is missing in action again today??? Uggg...

Before calling the audio store again - helpful thoughts and insight from the community is appreciated. At this point I may look for a more economical cartridge that will last longer...I have read some threads about Ortofon cartridge fragility. Understandable - the cartridge is likely the one component that is replaced most often in a system...but i need something more reliable... recommends are welcome. A MC cartridge that matches well with my arm/table...at three different price/quality points...

Your insight is appreciated,

J