I think “group shopping” is not a new idea. From the time that I started buy things for myself, I already knew that if you buy bulk, the price will be cheaper. For a lot of events, if you buy as a group (different organization has different policy, 10 or 20 as the benchmark) then you get cheaper tickets. And so on.
At now digital age, we had “groupon” (groupon.com) in the US, similar format “Jumponit” (jumponit.com.au) in Australia…this website just in market for about two months, but I already shopped 5 times, and I haven’t used any of them yet--- all paid in advance. Why did I do that?