MM Cartridge recommendation


I am in the process of upgrading from my current project debut carbon(with acrylic platter and ortofon blue) to a vintage Micro Seiki DD-5.  It will come with the stock tone arm and Micro H-303 headshell but no cart. I am looking for any recommendations for a MM cartridge sub $500?  This turntable will be used with a Cronos Magnum III powering a pair of Triangle Acoustics Comete 40th anniversary speakers.

I was thinking of a Nagaoka MP150 or 200 but have no experience with cartridges other then the Ortofon 2m line  so all suggestions are welcomed. 
Thanks in advance. 

tritube

I love the natural musicality of the better Nagaokas.  The MP150 and MP200 share the same body, but the MP200 adds the significant benefit of the boron cantilever.  I added a JN-P500 nude fine line stylus w/boron cantilever to my MP150, and find it sublime.  In the end, it’s always subjective, and a matter of synergy with your system.  

Mwh, when you say MP200 is a sweet spot, does that mean you have auditioned several others in their line-up?

Forgot to mention the obvious and often noted fact that Nagaoka MP cartridges are MI types, not MM.  Not that there is anything wrong with that. They work fine into any phono stage that offers a 47K ohm load and at least 40db of phono gain. (A little more gain in terms of db is better, because the Nagaokas tend to put out a bit less than 4mV.)

The products of two companies always come to mind for me when it comes to MM cartridges that offer exceptional performance, consistency and value:  Audio Technica and Ortofon.