There's been loads of coins that I have been severely tempted to invest in, most I have managed to resist though. It's actually even more tempting now that the markets are low, so many are back in my 'buy zones', but I just can't shake the feeling that there is still more negative times to come. Powerledger was one that I wished I had stayed in (although I did make a decent profit), and almost bought back in at a higher rate when it was shooting up. Cardano was another one. Both are back at reasonable prices now, but I've learned to be much more cautious over the past few months.