I can chime in. I went from a bunch of MM carts - Ortofon 2M blue, the entire line of Nagaoka, the Grace F9E, etc. - to MC carts - various Denons, Dynavectors, etc. As others have mentioned, the biggest change is the MCs offer more air and dynamics on the whole (individual carts may vary, I'm just speaking in general) and more often than not more detail. I tried going back to MMs a couple of times just for fun, but ALWAYS returned to MC carts. I do still like Empire moving iron carts and keep one on my secondary turntable. MC carts do NOT have to break the bank. If you like your Yamaha MM stage, you can either buy or build a step-up transformer that will amplify your MC's signal enough that it can go through the MM stage. That's actually what I do on my LTA Z10 amp, which doesn't have a MC stage. A lot of folks think SUTs actually sound better than straight-up MC phono stages. I built one for ~$300 using a soldering iron, a power drill with a few bits, a switch and a steel case available on Amazon. The biggest decision is figuring out which transformers match best with whatever cart you're using. At that point you can either source the parts yourself or find someone who builds them and buy it complete from them. The carts themselves can range pretty high in price but again you have choices. I got my Hana SL used from an audiophile friend for $200 after picking up something for him off a local Craigslist and shipping it to him in another state. That was a good deal and it's by far my favorite cartridge after having gone many. A Denon 103r or Denon 301mkii pre-supply chain SNAFU went for around $300 new. Those are both excellent carts, especially for someone just getting into MCs, but I would wait for things to settle down again before buying one (they're currently closer to $400-500, which is just way too much). You will eventually have to retip it, but usually not as often as the manufacturers advise. And you can get something retipped either at its original level for not too much money or upgrade it. In fact, you can use retipping to your advantage. You can find used MC carts that have damaged cantilievers for usually less than $200 and have them sent to a retipper to get a brand new TOL cantilever and have yourself a very nice cart for ~$500. Just my two cents.