londrum - 9:15 am on Aug 28, 2013 (gmt 0)
when i'm looking at my competitors pages in the serps, i quite often see expired events. if you look for a concert by Mr Smith, for example, then their two-year old page will be sitting on the first page, ahead of the more recent ones, presumbly because its attracted a lot of back links, and google doesn't understand that its out of date. If you click through to that page, then there's a big box at the top which points the user to the more recent concert (on the same site). so the user is happy, and the site maintains its rankings in the serps.
if you do it like that, then there's no reason why your bounce rate would suffer, i dont think. you've just got to make it very clear to the user that it's old, and have the newer stuff within one easy click.
at the same time... i would remove all internal links to the page, so you cant find it from my site, as per netmeg.