What drew you to the 67-72 Chevy Trucks?

[Chevyland]

They're so inexpensive
At least they used to be

When I started my business 30 years ago. The company's first truck was a 72 c/10-$1000. Then a 72 c/30 dump truck-$2000. Over the years a had 5 or 10 more. Never paid more than $2500 for any of those work trucks.
Fast forward 30 years. I needed to update/upgrade the fleet. Bought 4-2015-3500 dump trucks. All over $40k
Sold all of the old ones for about $1500 each

When I did the math. That meant I basically paid $1000 for 25-30 years of use. Well less than $5 per month

I doubt the new fleet be will so cost effective
I wonder if they will still be running in another 30 years