Dude you don't want to know the economies of scale.
Bought car for 3k back in 92, dumped about 3k into it, sold it for $1100. I overpaid for the car by about $1500 and did everything else 'right' except when I went to sell it I was broke & it was missing like EVERY thing to show properly...I cracked a header making the car sound like crap, the door panels were off/missing, etc.
So basically I am selling the steering wheel about 8 yrs after the sale for 25% of the value of the whole car.