You pay dearly.  I have always said that you pay more for bad advice than you do for good advice.

I once had a client call wanting to list his house.  We went over all of the comparable properties and we came to the conclusion that the property was worth $600,000.  He spoke to another Realtor who convinced him that his property was actually worth $800,000.  Because of the large difference in the two prices, he decided to list with the other agent because he did not want to miss out on $200,000.  

Unfortunately, their property is still listed today – only now they are priced at $550,000.  Not only does he not have his money, but he has now paid for the house to sit empty for over a year.

Another example, I had a $700,000 offer on a property I had listed.  The owners of the home said that they thought the market was turning around and they did not want to take the offer = they thought they could wait and get more money.  After the home sat on the market for a year after that, it sold for $620,000 – they lost $80,000 plus they had to pay to maintain the property for a year. 

As you can see, there are consequences to any decision you make - especially in real estate.