I sold a house in Scotland a few years ago for just over £300,000. The buyer would have had to pay £9,000 in stamp duty at the time. Under the rule changes announced by the SNP in their budget proposals, due to come into effect in April 2015, a buyer in similar circumstances in future will have to pay £30,000 in stamp duty!
At least we now know the SNP definition of "rich"! Just wait until they start setting income tax rates and threshold levels!