As a followup to this, the scrypt coins I mine increased in profitability this week. I'm making over 1% ROI per day right now.
Increasing difficulty is less of an issue for altcoins. There are so many of them that difficulty may spike on one but that will cause it to drop on others, shifting which is more profitable. They tend to self correct better than Bitcoin.
Increasing difficulty is less of an issue for altcoins. There are so many of them that difficulty may spike on one but that will cause it to drop on others, shifting which is more profitable. They tend to self correct better than Bitcoin.