The last time I looked,most high end tables come with a straight arm. I don’t think it makes any difference,it’s all about the design of the arm. Take a look at this!
http://store.acousticsounds.com/index.cfm?get=results&start=1%20&CategoryID=111
http://store.acousticsounds.com/index.cfm?get=results&start=1%20&CategoryID=111