I've figured it out

For those of you who didn't know, the reason remodels are so costly is because you have the time and expense of the whatever, plus you have the time to move stuff that's in the way. Then you have to move it somewhere else which requires more time and expense. Then you have to destroy somewhat serviceable walls and floors to run pieces through. Then you run stuff through them. Then you spend more time and money fixing them. etc. etc. etc. Yep, good times.