At the end of the day, it's all just jockeying between Netflix, BBV, and the movie industry here. It's an ever-changing landscape, and like others have pointed out, due to certain agreements and limitations, there are certain benefits you'll get from one company that you won't find with another. Yes, BBV has an exclusive window with a lot of movies now. But if you think the cost of that agreement isn't going to come back at you in the price of a rental, you're nuts. You're paying more for the "right" to rent the movie "early".
On the other hand, Netflix has an outright MONSTROUS list of streaming content that is ever growing. But now, we're starting to see the effect of that luxury. I don't blame Netflix for wanting to move away from disc based rentals. How many idiots do you think use their rentals as coasters for a week, beating the hell out of them before shoving them back in the envelope, ready to do the same thing with the next movie they get. With streaming, that's not a problem. I just don't think an "all movies are streamed" world is even a decade away.
Ultimately, people are going to pay for whatever they feel is worth the cost. For me, Red Box is the only real competition for Netflix, but I'd rather have movies streamed to my home and mailed to me than have to trapse across town and make sure I have the movie back before 9 PM the next night. I also like renting movies that are older than 2 months. Hell, just last night I streamed the original Night of the Living Dead. Why? Because I could. If my $1 more per month means that I"ll have a bigger library of movies to do that with, I'm all for it. As long as the price increase is accomplishing something, I have no problem with it.