I bought my tickets for the Pyeongchang Olympics a few days ago. By Korean standards, the website was very easy to use. By international standards, it was only a bit of train-wreck but I could use it in Chrome which was pretty mind-blowing.
I'll be going for two days and seeing a) a US men's hockey match, b) two rounds, male and female, of aerial skiing, and c) the finals of the women's Super-G skiing event.
I wanted to try and see an event where South Korea had a good shot at medaling (basically, short-track skating) but those events were incredibly expensive (over 200 bucks). The tickets I got weren't exactly cheap either, but I'm excited.