Also, SW paint is little thicker and hides imperfections very well.

@Jerome MorelosI am not but sanding is to get a nice smooth finish not necessarily for bonding to the primer or wood.If you keep painting over imperfections you just notice them more and more each time you paint and they get harder to remove later on.

Be ready to adapt and come up with creative solutions because you are working with an imperfect structure.

The imperfections and all!

Buyers nowadays are also smart enough to look beyond your minor imperfections. 

If you're using flat, you'd be better off to go with 400 as it's a "deader" flat and will hide more imperfections.

They are fine as long as they have the imperfections on side or back and they have warranties same as new no dents.

I notice people all over the internet pointing out imperfections in every investment strategy, but I always want to ask what they do recommend? 

-Knockdown texture will mask a lot of imperfections in walls either from shoddy work or an old house. 

After that other imperfections will be excused.