[loceng]

I think that would be the primary use case: Try to steal away someone purchasing one item for another similar or related. I'm doubting the stickiness on the benefit to those who are the ones who collect the 'wants' though. Sure, it might advertise their site for a bit (if Facebook chooses to include it in any users' feeds that is...) though otherwise Facebook will want to monetize that free exposure by putting paid-for-by-competitor ads (but really I don't think those 'Wants' will even show very often.

I also see Facebook feeds becoming something familiar with Idiocracy - which has no appeal to me.

[ajenkins]

Makes sense. I was thinking more so from the side of a marketer being able to target people who specifically state they want your product and excluding people who already own it. This way you're not spending ad dollars on people who already have converted. Really interesting how much you can do with this data.