Lets play water pump goes out scenario.... Mine costs 13 dollars, and can be fixed with a 9/16ths wrench in about 30 minutes.

3.5? hahah not.

I'll replace 10 water pumps, and be happy about it.

How about a total rebuild? ouch on that 3.5.... better off getting some used 90k one, and selling your truck.

I better go get my butterfly valve recall fixed.. ohh nevermind...... this motor does not have the self destruct recalls in effect...IE crank bolt, and butterfly valve

For ME, it was about Performance and longevity for the $.

I could have put a vortec 350 in there(which will be next). same deal there. cheap, and easy to maintain.