As crazy as it sounds, there are dealers who will loan out cartridges for a home trial. I got to try the Orpheus L before making the purchase. I know of a dealer that lent out $12k Allaerte cartridges. But, one has to have a pretty close relationship with a dealer to get that kind of privilege.
Even a home trial is not entirely definitive because it does take some time to acclimate to the new sound, evaluate the result and then make the myriad adjustments (change loading to the cartridge, change VTF, change VTA, change tubes in the phonostage). The adjustments are particularly tricky because they are interactive. For example, changing VTA affects frequency balance as does changes in loading. So, one should do both at the same time to find the right combination -- one cannot optimize just one parameter then go on to another.
Still, one can determine the basic character of a cartridge fairly easily WITH EXPERIENCE.
Even a home trial is not entirely definitive because it does take some time to acclimate to the new sound, evaluate the result and then make the myriad adjustments (change loading to the cartridge, change VTF, change VTA, change tubes in the phonostage). The adjustments are particularly tricky because they are interactive. For example, changing VTA affects frequency balance as does changes in loading. So, one should do both at the same time to find the right combination -- one cannot optimize just one parameter then go on to another.
Still, one can determine the basic character of a cartridge fairly easily WITH EXPERIENCE.