I'm curious.. if ROI is on average around 6 months wouldn't it be better to simply buy the coin at today's prices and ride it up? Or is the point of mining to make money even as the price continues to drop?
Well, if you think the price is going to continue to drop then buying at today's prices would not be a good idea and you would lose money.
Mining on the other hand.... You spend $2000 on a miner, after 5-6 months you break even... after that everything is profit, get it? Risk vs reward. Even in the price goes down you can hodl the coins you mine, trade for another coin like bitcoin and hodl, or you can cash out immediately.