I didn't ever buy bitcoin. But with the current price for bitcoin I really regret that I didn't buy bitcoin on last August-September when the price dropped. I doubt we will ever see such price for bitcoin ever again.
Bro it always happen with me also, I always think that I should buy bitcoins and for some reason I just keep thinking only and once the price jumps I regret and then again think of buying and actually this price hike gave me a little loss.
When the price was around 1200$ I bought around 0.33 bitcoins with my local currency and now I am quite upset, now I would gamble a little and try to make it 1 bitcoins or at least 0.5 bitcoins so I am not in loss if I sell the bitcoins right away.