We have that cookbook; it's one of my favorites.

I picked it up at a yard sale when I was in college, and enjoyed it so much that I couldn't bear to part with it, even though I didn't have the necessary pot. As it turned out, it was almost ten years until I'd settled down enough to make it feasible to buy such an expensive and not-very-portable item. Meanwhile, the book was pretty much useless, as the recipes are specifically designed for baking in an unglazed clay pot, and nothing else will work the same way. (AFAIK, Romertopf is still the only brand available in the US. I'd be leery of trying to make one using a terra-cotta pot from a garden center, or any other pot not specifically designed for cooking, out of concern that the clay could contain heavy metals.)
Now we have two Romertopfs, and the cookbook has proved worthy of being carted around for all those years. I found the medium-sized pot in brand-new condition for $10 at a thrift shop, and we registered for the larger one as a wedding gift. They both get used, and I'd even like to add a small one for grains, vegetables, and desserts. Cooking in a clay pot is just as easy as the book claims, and the food is always delicious. The only hassles are finding storage space and soaking space (some sinks aren't big enough to hold the large pots).
Honestly, though... you want to know the truth? I'm in cahoots with your BFF. We were sent by the Romertopf people, and we're on a mission to recruit you to their cult.

j/k
