This one will go 500K already. 7.3 is beast. 6.0 is the turd that needs 10K worth of work.
You are correct. Honestly if I didn't have a 16 year old son who made my insurance through the roof I would keep it along with the new truck and use the 7.3 as a beater truck when I need to go get a load of gravel, etc. Liability alone on it eats my lunch though because of my boy so I can't justify the expense of keeping it.