I would pay for this and have done so. I will be at LEC for the games I can make but its nice to be able to check in on games from the office - I'm essentially paying twice as I have an LEC tournament pass and a full tournament pass for the streaming. I have a player in the tournament and its also nice for him to be able to watch his own game after the fact. I also paid for streaming of a few days of the Jr. Boys provincials which was actually more expensive than the Sr. Boys prices. If I was a parent who was not able to attend due to work or being out of town, I would love that this service is available.
It does seem though that LEC is getting you coming and going - pay to attend, pay to watch at home, can't bring in a Starbucks. It would be nice if the tournament pass you buy at the LEC came with a code for free online viewing.
Unfortunately, for me the quality of the live streaming has not been that great.