Well I guess the Alien Breed 3D issue has been resolved but I honestly need to do something about that bad habit of purchasing anything that has caught my interest.
I am seriously worried that it could get me into trouble even though I know what the limits of my finances are.

I honestly want to control this desire.
Okay it is not as awful as some other habits, there are people who are addicted to gambling or waste loads of money on other things but still.

So are there people here who make lists of retro games they want to own?

Well regarding Amiga I guess I might still want to have one of the earlier Alien Breed (Alien Breed 1/SE '92), Desert Strike, First Samurai/Second Samurai (the last is easier to find), North and South, and perhaps some of the RPGs Harrison

Shadow of the Beast games might be nice but they are often very expensive.