Table/Cartridge price ratio

Of all the equipment in audio the cartridge hits the point of diminishing returns first. One can buy a well designed cartridge for under a hundred dollars. One can buy a very, very, good cartridge for a few hundred dollars. Beyond that the improvements, if any, get very expensive indeed. Generally the additional money would be better spent elsewhere.

So, an $800 cartridge is WAY beyond the point of diminishing return!

Depends on the tonearm.

It is impossible to evaluate and/or give advice for any cartridge(s) without the tonearm.

The tonearm/cartridge and amplifier/speaker matches are the most critical in any audio system.