MP150 or MP200


I am currently using a Nagaoka MP110 cartridge and want to upgrade . I really like the Nagaoka sound and was considering staying with the Nagaoka sound . My question is will I get a considerable upgrade in sound going to the next level cartridge which would be the MP150 which would be a 329.00 investment or in order to get that big upgrade I would have to go to the MP200 which would put me almost at the 500.00 mark .
mcmvmx
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@chakster I got that info personally from DJ Harvey via Francois K (who was in the booth every week)... and here is Larry himself talking about Grace carts:

“I’m going to get two more turntables so that as the night goes on, I can upgrade the sound. So I use cheap cartridges in the beginning and upgrade – I have $150 Grace cartridges which I’m really into but you can’t backcue with them. At five AM you’d say ‘what is that?’ because a record should sound as good as a tape.”

https://www.djtimspins.com/larry-levan-interview/?cn-reloaded=1
For the record... Grace Disco stylus has nothing to do with DJs. It was marketed to audiophiles. It is a high quality nude diamond. I assume the name comes from the fact that it is spherical. The F9D, which I own, has a recommended tracking force of 1.2 g, the same as other Grace F9 models (F9P has a significantly higher VTF because it was meant to be used in heavy professional arms, i.e. radio stations). the F9D is a very good sounding cartridge.
I'd try and snag a Shure m97xe, if you can find one. It's a great mm cartridge with styling cues from the shure v15, with the drop down stabilizer brush. To me it's a great sounding mm cartridge. 
Well guys . I took a desicion and sent my broken Ortofon Salsa Moving Coil Cartridge to soundsmith to be recantilevered . It will have a shappire cantilever with lasercut nude line contact stylus for 300 bucks 
 Not bad and I really liked the way it sounded in my system with its aluminum cantilever so I assume that with a shappire camtilever it'll sound even better . My MP 110 will be relegated to second hand duties . Plus the rebuilt will have 1 year warrantee . Not bad , not bad at all 
 Anybody have experience dealing with soundsmith ?