I'm constantly wishy washy on whether or not to sell a few excess pipes. There are definitely a few designes on my shelf that I don't appreciate very much, but I also got a good deal on them, and if I think to myself "If I saw this pipe available for the price I'm willing to sell it for, would I buy it?" Usually the answer is yes, even if I'm not a huge fan of the pipe.
At least the thought of selling a pipe gets me to pull it out and polish it.
At least the thought of selling a pipe gets me to pull it out and polish it.