Groupon was insane at launch. I got to do so many fun things at a STEEP discount for what, maybe 1-2 years?
Then companies realized people like me don't return after I soak one time in a flotation chamber or indoor skydive etc...
Then the deals got worse once the fun places stopped participating, and I lost interest as I don't currently have a need for an 8% discount on a museum ticket.
Feels like another great example of VC-subsisized awesomeness that was facing an inevitable death once it became unsustainable.