"Andrew-S" I-Still-Hate-Spammers@Sorry-I had-to-leave-for-bit.com wrote in
message ...

When I went to Tucson a couple of year ago, I was amazed that I didn't any
of these in the Boneyards. There was several aircraft that where a little
older.

Once a design has been retired there's no point in keeping any in the
boneyard.