But you can already do that with a USB stick? It's not like they're expensive.
Beyond carrying them around, my swivelCard has access to every discount offered by the USPS for bulkrate and EDDM campaigns.
Handing out 50 cards at a networking event isn't a personalized pitch, you've not really backed up your argument. Not sure what USPS has to do with that discussion either, I hope you're not advocating sending these as junk mail, we have enough waste as it is, are they recyclable?