Deals.com is similar to many other sites, including one of my personal favorites. But, unlike many of the others out there, it offers a new, contemporary design interface with responses that are truly dynamic. Other competing sites only offer billboard-type deals that have to be moderated.
Only time will tell if the newest shopping website - one that mates Digg to Amazon - will last and grow into something successful. But, if the past is any evidence, not developing a site like this would be a huge waste.