I'm pretty sure it's not just piracy, I'd bet money another fact is they don't like people sharing their games, they want the person to buy it themselves, no matter if they like it or not. Piracy is a problem, but I don't believe it's the only reason.DRM rules the digital world in which we now live thanks to piracy.
My internet is 50x more unstable then my electricity.Sometimes the electricity goes out.
If mobile reception in your area was poor and unreliable, then no you likely wouldn't buy a cell phone. Why would you buy something that doesn't work for you? You'd buy a landline so you can ensure it works.The mobile reception in the area I live in is spotty and unreliable. I will not buy a mobile phone.