If I go on a toy hunt and don't find what I am after, I do not buy something that I otherwise would not have cared about to compensate. However that doesn't mean that I won't be frustrated at not accomplishing my hunt.
Oh yeah I know that feeling. I remember when I wanted ROTF Voyager Long Haul so badly I think I did a toy-hunt for him for about a whole month. At the end it got so frustrating that I was like ah stuff it - and then HFTD Payload came out and I got it on Release Day!