OK, for all you CA geniuses, how many purchased their house or previous houses based on the CA? Did the CA have any impact on your decision to purchase the house? How many buyers buy homes their homes based on the CA, consider it, or or even know anything about the CA?
Ok, fine. You think the cost approach is unreliable. That is your prerogative. And perhaps, when you do it in your market, you find $100k that cannot be accounted for based on cost & land value & EI, so you attribute that to excessive profits (I assume). Since you deem it unreliable, you can address it in the reconciliation and move along.
The only question is this: When you are required to do it (by a condition of the assignment or because, in that rare situation, it is necessary)
do you do it correctly?
Do you have a recognized source for your costs?
Do you identify and account for the various forms of depreciation?
Do you support your opinion of site value?
Since we are talking (I presume) typical GSE work, do you provide that data, as required, such that the work can be replicated and evaluated (including the data to support the opinion of site value)?
If you do, no harm/no foul and you are free to think the rest of us crazy.
If you don't, because you believe it is worthless and doesn't matter, you may get yourself in trouble if reviewed by the state (i.e.,
harm and foul).
You don't have to answer me, for sure. But that is the only relevant question ("do you do it correctly"), if you ask me.