I'm buying my first teapot. I just ordered four packages of tea from
Upton Tea Imports. I've been researching teapots to buy on Amazon.com.
Which one do you think I should get, a pyrex glass teapot or a
japanese cast iron teapot? These are the two that I like:

Japanese cast iron teapot set with copper coin decorations $60 + $15
shipping
http://www.amazon.com/Japanese-Cast-...9531074&sr=1-1

Pyrex teapot $20 + $5 shipping
http://www.amazon.com/Crystal-Resist...ref=pd_sbs_k_2

The japanese one costs 3 times as much but it's so nice and I like the
stainless steel strainer that goes inside the pot.

The glass one is cheaper and you can put it in the microwave. I'd
probably pour the tea from this one through a stainless steel strainer
rather than using the glass infuser it comes with.

Or maybe I should get both?

It's winter, so it's time to drink a lot of hot drinks.