Of late, I would say that isnt just a consideration with sleeved guns. Many excellent doubles linger on used gun racks, especially 12 gauge versions. Buyers are a fickle lot, and Ive both heard and said this is my last good gun only to be dismayed when it didnt turn out that way. In the case of a sleeved gun, there is the possibility you will be buried with it, and not because you requested that.

The choice of a gun to purchase never comes down to just two examples, and never to just a Damascus and a sleeved example. Keep looking. Unmodified, and in-proof will be points more important at the time of sale than what tubes were used at the time of sleeving.

Best,
Ted