I'm thinking of purchasing some expired domains, to utalise their PR and links and age. I can't find any within my niche, specifically... ie: the domain names are not similar to what I am doing... But... I figure I can build them up, and then link from them to my site. If I were to try buy some, would they necessarily keep their age/PR/links? Or do expired domains loose them in the transfer process? In effect am I merely buying a very expensive domain and gaining no advantage from it? Any advice appreciated. Thanks.