Bitcoin mining is useless unless you are a developer or professional who has whole rooms dedicated to mining and the cost of electricity is worth your time. Going solar power? Useless too because even with free energy you can't beat the difficulty. Don't get me wrong its better to have something than nothing but it's not about hardware anymore its about the markets volatility and easy of use. It's been legally adopted in German get thinking in market terms and not computer terms. Unless you are into it for a hobby...then have at it I do it for fun and even though your neighbors don't quite get the picture yet atleast you're making a move to change the future