For that very reason, I have deleted two posts I had responding to agrabins plight, same advice, but let me have first dibs at... :-)
Agrabin, if you do decide to sell, please please please keep hold of those that feel special to you, the ones you do reach for first when you are browsing through them.
And as in the case of Sir B, you don't have to give them away, and they may stay on your nice bookshelves a little longer, and your feelings may change.
Hope you keep them.
Except for the one I'm pm ing you about now j/k