The message from Mike Mitchell contains these words:
Please explain why vendors in Scotland largely pursue this
If it was unfair to buyers, or distorted property prices, mortgage lenders wouldn't risk making loans on such purchases.
If buyers are expected to get a valuation, what is wrong with the
He does.
I'll tell you
Most buyers have a mortgage. Mortgagors value property before they decide how much they will lend on it. That simple economic restriction prevents properties from being sold for "more than they are worth". If your misguided notion was correct, then half Scotland's property owners would be in negative equity (owing more on the mortgage, than their house would fetch if it was sold). Unlike England, negative equity is almost unknown in Scotland.
Also, the system must be
Fixed-price on a 2nd hand property in Scotland is usually a sign that the owner is desperate because either, the property is hard to sell, or, he can't pay the mortgage and the lender is about to foreclose. Or, the owner has already defaulted on the mortgage and it's being sold by the lender at a fixed rate just to recover the loan.
Greed would be asking more for a house than buyers want to pay for it. That appears to be your problem. Sooner or later, you'll understand that buyers, not vendors, dictate property prices.
Janet.