i know you prob don't wanna spend a lot, but if you can come up with some more money, it would be better to buy new. although some people do take really good care of their boards, most of the time they are riding hard and after several uses it could affect the performance of the board. this isn't true with my board because it feels just like new after 7 months, but if i saw my board as another person i would never want to buy it. my only advice is to check
www.silverfishlongboarding.com and i think they have a classifieds section or buy/sell section in the forums