If you're an ecommerce site owner, will you be changing how you deal with unavailable products as a result of the recent video from Matt Cutts? Will you be moving over to a 404 instead of leaving the pages live still?
For us, as more products were becoming unavailable, I had started to worry about the impact of this on the website (bad user experience, Panda issues from bounce rates, etc.).
But, having spoken to other website owners, some say it's better to leave the unavailable product pages there as this offers more value (it ranks well so attracts traffic, links to those pages, it allows you to get the product back up quickly if it unexpectedly becomes available, etc.).
I guess there's many solutions, for example, using ItemAvailability schema, that might be better than a 404 (custom or not). But then, if it's showing as unavailable on the SERPS, will anyone bother clicking on it anyway...?
Would be interested in your thoughts.