Which cartridge for Graham 2.2 arm?

Mr Jonathan carr uses it.. so Lyra can be a good candidate 

I’m wondering how people can recommend a worn/used Koetsu for a person you said his budget is $500 max??? 

No, you're not wondering, not at all. You're just trying to take a cheap shot. Nobody recommended a Koetsu. I said buying used opens up a lot of options and mentioned one example I have seen.

You can convince yourself of your cleverness but the plain fact of the matter is the more you twist the truth around to fit your predetermined narrative the more you undermine your own credibility. Do it enough you risk sounding like just another MDS crank.

With a $500 budget I would look closely at the new Audio Technica OC9 family of cartridges. I believe there are four variants available, and they range from the mid $200s up to the $700s. Looks like the OC9XML would fit in your budget as it sells for $549 and gets you a boron cantilever and a microlinear line contact diamond. Audio Technica has a long history with this cartridge and has refined it over the years. One of the better values in audio, and a solid choice at your price point. 

No, you’re not wondering, not at all. You’re just trying to take a cheap shot. Nobody recommended a Koetsu. I said buying used opens up a lot of options and mentioned one example I have seen.

You can convince yourself of your cleverness but the plain fact of the matter is the more you twist the truth around to fit your predetermined narrative the more you undermine your own credibility. Do it enough you risk sounding like just another MDS crank.

No matter what you seen for sale somewhere, you have no idea what it was. Koetsu BLACK is the worst Koetsu cartridge, but the brand itself is one of the most expensive brand ever. If you seen a worst Koetsu model somewhere for ridiculous price then it’s a worn cartridge that must be repaired, I know very well the going rate for used cartridges.

The most expensive brand and the worn used cartridge is the worst combination ever for a buyer!

A buyer with low budget can find a perfect cartridge (MC, MM or MI) from the brands like Audio-Technica, Garrott ... etc. 

Koetsu is a luxury cartridge that cost $5k and they are for experienced users who tried many different cartridges or for those who does not count money. Koetsu service is terribly expensive.