I feel this long term campaigns benefit a lot from exposure compared to ones that just keep closing up after short periods of time.
This. It's a bit odd that one week of campaining is enough to determine how successful or not successful the campaign is. I think that you can only come to that conclusion after two or three months.
Then we also have brand awareness. It could be that people don't need this service today, but might need it next week or month. Now people will forget about Sudokuwallet because they no longer are seen on this forum.