Don't buy new. Buy one a year or two old and get the depreciation value out of the way. Every vehicle on the road is a used vehicle and so will a new one be as soon as the tires hit the pavement outside the lot. At that moment you just lost 25% of the value. Haven't bought new in decades for this very reason. You can get used with full warranties and save the 25% which on the price of new trucks is significant.
That used to be true, but recent years, it's just not anymore.
Do some looking.
A pickup...say an F150 Supercrew 4x4... say 2 years old an 20k miles on it.
Price it.
Then after dealer/factory incentives, price a brand new one.
The used one will be within perhaps a couple or three thousand dollars. And have less, or no warranty.
Clean, used, low mileage pickups bring a premium. If you can find one... It won't be significantly less than a new one, in my experience.
