Transmission Dilemma

[my67c20]

Well after weeks of exhausting research for the best transmission to upgrade to i am now stumped between 2 options. When i upgrade my SM465 do i go with the 700r4 or the NV4500. I personnally like the stick shift but talk about cost. However if i go with the automatic i could end up spending just as much. So money really is not the biggest problem.The real dilemma is with the automatic the wife can now drive my truck and i can periodically use her car. But do i want her to be able to drive my truck? I could try to ruin my marriage and try to teach her to drive a stick but do i really want to spend alot of money to cry everytime she grinds the gears. What do i do? Any body else caught between this rock and hard place.