Yep.
And these things concern me with building "kit" prices. Are they selling your a walk in door that will outlast you and your kids? Or are they selling you a door that you will hate everytime you go thru it? Will the windows seal and not sweat/frost over? Or will you know the outside temperature based on walking near the window? Will you be amazed at how smoothly the overhead doors operate? Or will you step out of the way each time you raise/lower them? These things need clarity before the first check is signed.
Some things are worth the extra money. Some are not. For example, I don't like door knobs on my shop walk in doors. I often go thru them with my arms full. I'll take a handle, regardless of cost.
When I turn on the lights I want to walk anywhere in the shop and not need additional lighting. I used T8 4ft six bulb fixtures with fluorescent bulbs. Great lighting. Horrible interference with my door openers. Had to convert them to LED. Wish I'd known that before I started.....
I expect flat, smooth, strong concrete. Cost me $10 p/square foot. Worth every penny.
I expect efficient heat. Cost me a LOT of money in insulation, quality insulated windows/doors, tightly built building.
These things are why my building cost three and half times my friend's building. Went to a birthday party in his shop this Winter. Stood within a couple feet of his wood stove all evening with my coat and hat on. Could feel the imperfections in his concrete just walking across it. Windows totally frosted over.
As Eddie is suggesting, educated shopping and choices will get where you want to be. But first you have to be clear about your expectations. My friend is happy with his building and I am happy for him.