Solodays wrote:
with prices like that their clay should be as rare as you demand them to be, how do you know their clay is not rare?
again, wuold tea brewed in those pots have a more satisfactory outcome compare to cheaper ones?
Some masters bet on their reputation to guarantee the clay rarity (for example, the clay age). But as Chrl42 wrote, not only they won't use clays that difficult to work with (such as zhuni), they also tend to fire the pots at a lower temperature (well, at least at the lower margin of the temperature span) to avoid large geometric change in the kiln.
It doesn't necessarily give a better brew than 10$ pot.
For tea lovers, pot functionality is the most important but for pot collectors (who don't necessarily also tea lovers), pot geometry and craftmanship is the most important.
It all comes back to our initial motivation; to enjoy tea or to collect a piece of art work? or both?
Somehow you should balance it by brewing tea in a vessel you like the most. For me who is high mountain oolong lovers, the zhuni, which I like the most, is fortunately match.