True, I just thought of that and came back here to add that :-)

What the Bitcoin experiment taught me is that I am not a very good investor... The good part of mining was that I did it for fun, so there wasn't much to lose. The mining rig is now my new gaming computer. So even if I hadn't made any money at all, at least I would have gained a new gaming rig. In that sense it was a good speculation, for me personally (no real downsides but potential upsides).

I felt that by mining I also supported the idea of BitCoin, so it had ideological value for me, too.