I am thinking of buying this coin the person selling it wants $435.00 I dont know much about coins and have had trouble finding others of this graded PCGS coin to compair value. I did find out that the mintage numbers on this year were low compaired to others. The one I want to buy is in a PCGS holder that says 2006-W (1/2 oz) Gold Eagles – MS-69 PCGS. Is this a good buy?