So, I did some research. And the more I read, the more I liked. It also appeared that these were not easy to find. Seems that other folks were finding out about these as well. Went to the local VW dealer and asked a few questions. A lot of questions, actually. And as it turned out, they had one available. So I took it out. Liked it. Lots. But... one of the things my research turned up was that there were a few things that were desirable in these cars. One...heated seats. Seems that TDI's are so efficient they don't heat up real well real quickly in the winter. And here in Minnesota, that would be an important factor. Secondly, leather was better than the cloth. Many reasons. There were some other reasons as well, but the bottom line was I wanted a TDI, but not necessarily that one. I decided to do some fast searching and if nothing else presented itself, the one I had driven would work. I got lucky and found one at a different (non-VW) dealer. I bought it and have had no regrets at all.
If you want to learn more about TDI's, check out this website: www.tdiclub.com.