I received a €50 gift card from Prisma for a reddit comment. What did I buy?

As already posted here before, there was a nice agency r/Estonia subist interesting comments that could then be used in prisma’s marketing campaign. It turned out that my comment was also one of those selected. The agency nicely asked for permission to use it together with the reddit username and a €50 prism coupon as a token of thanks. So what did I buy for this 50€? There was a plan to put beer down, but since the end of the month and the money is pretty much gone, I had to buy more sensible stuff.