that's pretty much the main reason I don't use Groupon etc, if you are so desperate as to use a groupon to promote your business and get raped with all those fees, then chances are the quality of the service will be extremely subpar.
that's why pretty much the only coupon I ever bought was for Amazon.=
It's a good point that it would be very 'industry' specific. If they are simply delivering goods it's hard to cut corners. Though that said it's not easy to cut such large amounts from physical goods.
that's why pretty much the only coupon I ever bought was for Amazon.=