If I buy an expired domain that is no longer listed in Google will have to spend six months in sand box again I have bought domain name www.horseplanet.net which had a site running on it 3 years ago but is not listed on google would i have better of buying a new domain
Expired domains are fine. They just don't get the age value of a domain that has never dropped. I've put sites up on expired domains that have kept their page rank and their indexed pages. Not too big a deal for a basic site.