Sometime I like playing games. Recently I put a $275 Grado Opus3 cartridge on a $15k turntable/arm with an equally good phono stage. I ask audiophile visitors how much they think the cartridge costs. So far guesses come in somewhere between $600 - $2k with one up to $3k.
With AnalogMagik, I can easily measure the differences between the Opus3 and Statement3 cartridge I also own. The surprise is that the difference in sound between the two is much less than the measurements would indicate.