I'm sorry... what? If it weren't for battle.net giving D2 a 10 year shelf life, top-down ARPG's might not even be made today outside of a web browser.
Why does it bother you that I want a mode that doesn't affect you in a any way?
It doesn't bother me, the constant complaining about it though...
You had the chance to "show your disapproval" with your money, but instead you bought this online only game anyway and just whine about it? Sure, it could have had a single player, offline mode... and then they would have sold less copies of the game. Why is that so hard to comprehend? Is the number of people that didn't purchase because of the lack of single player higher than the number of people that would steal a copy of the game if it didn't have this "always online DRM"? No freaking way!
The only reason there is a SP offline version of D3 for consoles is that it is very difficult to steal/copy console games. If they thought they were losing more sales (for lack of offline SP) on PC than they were directly saving in piracy numbers... don't you think they would have directly ported over that offline patch by now? My guess is that they won't release the PC offline version ever... or at least until the online population dies down again a few years after the last expansion.