I'm enjoying this thread for a few reasons:
1) There is some fantastic pipe porn up in here.
2) It's fun to read the stories behind the pipes.
3) I really like seeing the updates, as folks' collections grow.
The pipe in my rotation that is worth the most is probably my Grade 7 Trypis Freehand Egg. It is also my best smoker; although the BB&S Straight Brandy that I just cleaned up may give it a run for its money. The Trypis Egg has the perfect hang, and turns every bowl into a lovely white ash no matter how badly I butcher the packing of the bowl. I purchased this pipe as part of a collection of 31 NOS Trypis pipes. I kept it because of the small divot taken out of the outside of the bowl. I am SO glad that I did.