Great 4 month listing for your item.  Will be long enough to draw in sales, allow users to rate you & add comments, and boost your SEO.

Annual listing for your item.

All options available from the Standard listing, though you'll also be in the sponsored area.

Sponsored items get better placement on our site and are seen more frequently by members.

Annual item listing, plus access to our Sponsored listing.  You will get priority placement of your item and better page rankings for your SEO than our standard ads.

Also, since you will list for a year at a time, search engines will be able to maintain your link for an extended period, further increasing traffic.