Where have you been? I was starting to worry!
The MP 500 is a fine cartridge for the money. High output cartridges are always a better value. My favorite so far has been the Soundsmith Voice but it is $3000. Comparing the Delos to the MP 500 is hard and it is probably closer than one would think. I usually figure that equivalent high output cartridges usually go at 1/2 the price of MCs. MCs are overpriced because the market will support it. I usually suggest sticking with high output cartridges until you are willing to spend over $2000 for a moving coil with a blip at $3000 for The Voice.