Would you pay $10 to have [extremely pleasant experience of your choice] for one hour, but have all the memories of it erased immediately afterwards?
Like I said, all the memories being erased afterwards is a given.
From the point of view of amnesiac future me, it would be just like I had payed for someone else to have a pleasant experience, which I wouldn't remember for obvious reasons.
http://www.smbc-comics.com/index.php?db=comics&id=2705
Addresses questions like "If I don't remember, but it definitely happened... who suffered?" in a rather non-obvious way (non-obvious to me, anyway).