Oh yeah something like 5 bucks would be more my speed but 10 is my line in the sand, I wouldn't even consider anything over that price.
I've done the unlocator/mlb.tv for the last few years. It works well on the Roku. The Apple TV was a battle this year. I think MLB was doing things that made it not work, so it's been kind of a pain. And like it was said, it doesn't work with mobile devices without more serious hacking around gps. I don't know a good way to get good pirate streams on the tv in good quality and reliably. Chromecast is crappy for that kind of thing. HDMI cable to the TV is a pain.
We all have our own moral code for this kind of thing. Personally, I think the mlb.tv workaround fits in mine because the only other option is to subscribe to a $50+ cable package to just get the one channel that isn't even paying the Nationals!
If the team is offering standalone access, no matter the price is, I guess that's where I feel obligated to either pay that amount, or if I don't think it's worth it, then don't watch the games. It's seems somewhat entitled to say that I don't like the price they are charging, so I will let someone else foot the bills and pick up the streams illegally.