In 2022, I had siding, windows and doors replaced on my house. Doors were front and back door. Front was single door with sidelights converted to a double door and back door was single door for single.
I believe the back door was about $2k, but we went with a metal (or fiberglass) door, full window with built in blinds. Storm resistant and locks at one point but latches in 3 different spots.
I believe the front door was around $3-5k?
Granted this was part of a whole house package, but $2k today for everything doesn't sound bad.
I would ask does it include trim (replacement of old with new), paint, locks, and other 'stuff'? One thing we had issues with on the front door was the old trim, from the mid-80's, is slightly different that new, current stuff. Luckily, they went custom for us to match, but if not, you are now looking at something looking 'off / odd' or redoing the whole room (kitchen, breakfast, etc.) to match.
aka, scope creep.
The same with painting (can you match inside and out) and hardware (re-key vs. reuse).
~egon