Things you would like to see on a trailer

I would like to see them offer special offer options. If I’m willing to pay for better tires let me spec it out. If I want more than one battery is it so hard to do that I can’t spec that? May I don’t want the crappy chairs they love to use. Why can’t I delete that? Etc, etc etc.
I understand they have to buy X number of these things to get their price, so give me 75% credit. I could live with that.