I think it was most likely in the 150-200$ range when i first started trading. Before that i was just messing around and getting familiar with the scene. Now that i think about that, thats nearly x200
I second this. I bought my first bitcoins at around 80$ and started trading them a few month later until the price rallyed to about 1000$ in 2013. This was the time when I stopped my trading activities back then.
However, as I was a complete novice in this area at the time, the losses in BTC terms were also quite high - but quite bearable in dollars at the time. But I would still very much like to have the BTC now