If you believe in what we are doing and want to earn more than 2x your electric costs, then you should just buy the coin and let the professionals do the low-margin mining.
I am an IT professional, if that counts. I just don't have the proper equipment at the moment.
2x my electric costs is still a profit, and the computer is just sitting here when I'm not using it. I could mine with it and also buy coins. But you may be right that it's not worth investing in more equipment.
My point is simply that if you purchased 1000 machines for 400,000 dollars and each machine consumed 100W and electricity cost 0.10 per KWH then you would have a power bill of $7200 and you might generate $14,000 worth of PTS. Assuming everything stayed constant it would take 5 years to break even, of course your computers probably wouldn't run for 5 years and would be a real PITA. If the price falls at all you lose money. If the price goes up before you can mine them, the difficulty will follow and you will end up with less.
On the other hand if you invested the same 400K into PTS, then you make profit on the whole 400K if the price goes up at all and yet you lose no more if the price goes down.
Sometimes thinking with larger numbers helps you see that you should buy rather than mine if you want to make money.
