I believe you are on the right path, OP. Just don't sell them at discount price. If the next bull run happens, you are in for a big kill. POW coins like ETC and RVN are showing some signs of what it may look like after ETH goes POS
I wasn't able to mine RVN, but I am trying to accumulate as much as I can via trading.
Yes same thing happened to me with Ethereum and Doge. I thought Doge was going to $1 and did not sell at 70 cents. I thought Ethereum was going to $20,000 and did not sell at $4,800.
Quick tip.
Don't always wait for those round figures. There's what we call psychological resistance. Always sell off before an apparent psychological resistance level. For Doge, it was $1, For BTC it was $70K, for ETH it was $5K. None of the prices of those coins got to the psychological resistance levels