The challenge for Groupon, and its competitors, is to keep the businesses happy through the amount of profit it can make from the people it brings in, but also to keep the users of the offers happy by giving them a genuinely discounted product.

BBC: Groupon shares rebound after founder is sacked

With banks saying no to loans despite great credit (and despite a Trillion dollar bail out from tax payers)..a food truck was great way to get a foothold in the business of make people happy by creating great food while at the same time, enjoy my favorite past time: cooking.

FORBES: Why Is DC Cracking Down On Food Trucks?