Demaestro - 6:57 pm on Apr 26, 2011 (gmt 0)

there's no way someone can afford to give away good stuff at 50%

There are LOTS of ways.

Some businesses this works for, some not.

Think of a wall climbing place.

The lights are on, the equipment is on site, the staff members are there. It doesn't cost them more money if the place has 2 people climbing or if it has 50 people climbing.

Their cost doesn't go up with each person that walks through the door until they reach a certain benchmark.

For businesses with fixed costs these coupon services are great.