Similar to what eBay has.
- if you want to WATCH an item on eBay - you can choose option "Add to Watch list"
- I am participating in different meetup groups and some with MANY events. I want to be able to add certain events to my Watch List if I like meetup, but not sure yet if I can join the event. I would like to see on my calendar not only the events I've attended or planning to attend (RSVPd), but also the events I am thinking to attend (Wish List).