Man
I am glad that you didn't take the original joke further. Karma is pretty close to the truth. Most of us on this board think more of you, as does your wife. Integrity is valuable.
I have a fully factory lockable '96 80. I have used my rear locker once in 4 years. The value of lockers depends entirely on where you live and drive. I would not give up mine. I will not part with my lockers, just because I have them.
But a locker is a two-edged sword. On ice, it will work against you. In sand, it will cause you to dig deeper holes.
On real rock, such as granite, there is a real advantage to locking all wheels together. In canyons, you often have two or more wheels off of the ground. Then a locker is not only useful, but needed.
Then it is worth having.
If you have found a truck without a locker, buy it if the price is right. If you can get the lockers, hold a BBQ and pool party to celebrate! You have scored! Fewer than 30,000 locked 80's were imported into the US. If you have one, give yourself a high-five!! You win!!