OP- you got a lot of sarcastic responses to your original post, which many interpreted as trolling. Assuming that is not the case, then the answer is "It depends". It depends on the resolution of the rest of your system and how carefully it is set up. And then of course there is your own hearing and your own values. So properly set-up, on a properly matched arm of commensurate quality, on table of similar quality, with proper interconnects, fed into a good phono/ line stage and an appropriate amplifier properly matched to high resolution speakers, most people can "hear" the difference between a $200 bundled cartridge and a $2000 cartridge. OTOH, if you are dropping that $2K cart into an entry level TT with a $200 phono stage, you probably will not hear much difference. If you put top of the line tires on a Chevy Malibu, it’s not going make significantly better lap times on a race course. And yes, at the highest end we are talking different flavors of excellence. Maybe even the subtle distinctions between sirloin and rib-eye to make another analogy. Or between two different vintages of wine from the same vineyard. Some folks are happy with very good or even excellent, some folks want superb! It is also true that the law of diminishing returns is very strict at the bleeding edge. And that there are folks who automatically assume if it costs more, it’s better. T’aint so ;-)
If you are considering how to upgrade your analog front end, and you provide some additional info (primarily your phono/line stage, and amplifier) and what your budget is, you will get some good advice. For example, the Denon 103R is considered by many to be in the sweet spot of moderately priced phono cartridges. It costs under $400.00. But you have to have a phono stage with enough gain to handle a low output moving coil cartridge, or you have to buy a step-up transformer or head-amp to bring the 0.25 mV output up to the level that a typical phono stage can properly amplify.
If you are considering how to upgrade your analog front end, and you provide some additional info (primarily your phono/line stage, and amplifier) and what your budget is, you will get some good advice. For example, the Denon 103R is considered by many to be in the sweet spot of moderately priced phono cartridges. It costs under $400.00. But you have to have a phono stage with enough gain to handle a low output moving coil cartridge, or you have to buy a step-up transformer or head-amp to bring the 0.25 mV output up to the level that a typical phono stage can properly amplify.