I always encourage purchasing authentic Japanese teaware made special by true artists, not mass-produced items, if one wants to have a more enlightened drinking experience. Though tastes may vary, I appreciate the "beauty in imperfection" aesthetic of Japanese pottery.
Here's a good summary of yunomi types:
Here's a couple places to look:
I was sent an email notifying me of a week-long or so (I forget) sale of 20% off starting the 14th on this month. check them out.
Always beautiful yunomi, sometimes some steep prices, sometimes not.
The prices aren't always high, but the shipping can make it pricey, but you're getting it from the source. Support the tea culture and enhance your tea experience!