Groupon having a sound business model is completely debatable, though.
When your business model requires that your suppliers provide you with goods and services at a nearly ~75% off their typical retail value, so that you may sell it at ~50% of the typical retail value, and you must amass ~10,000 employees to perpetually hunt down supply inventory, the soundness and sustainability can be easily questioned.
When your business model requires that your suppliers provide you with goods and services at a nearly ~75% off their typical retail value, so that you may sell it at ~50% of the typical retail value, and you must amass ~10,000 employees to perpetually hunt down supply inventory, the soundness and sustainability can be easily questioned.