I'm with Que on this one. Miners efforts are wasted outside the system. Your paying expenses to your ulility company and amazon. If you really invested money for mining protoshares, I think that was ill-advised because there has numerous discussions here that Invictus was looking for a PoS-- which seeks to limit mining. Mining is wasteful. Its wasteful here. And really would miners promote a currency? I doubt it. That's a myth. Once miners get their coins, they would dump them on the market once they see a good opening. If you really want to get involved in PTS, but with mining its thats so important, then mine another currency, exchange it and get some PTS. Then convert those PTS to PTS 2.
Miner's effort is not wasted, it's a necessary evil to secure the network; this subject has been debated on the bitcoin forums many times, repeating the debate here won't yield any meaningful result. I consider myself environmental-conscious and recycle whenever I can, but the energy spent on cryptocurrency mining is really miniscule when you comparing it with a lot of other human activities, the benefit is far outweigh the cost.
Also, I don't see Amazon, DO, electricity companies are taking advantage of PTS, like it or not, they are an integrated part of the PTS ecosystem.
If PoS is so superior, you'd think PPC has by now overtaken LTC or even BTC, but that's not the case.