It really was terribly boring. My strategy for dealing with this was to open with a really bad but non-standard move.
This led to an immediate abandoning of all studied openings by the opponent and usually that led to a relatively quick win because they spent so much time on openings that they forgot how to play. Funny that.
Of course, against a really good player that will just get you slaughtered but the people that rely on knowing tons of openings to gain a favourable position in the mid game will fail miserably.
I quit because of that, the fact that in order to be competitive I'd have to cram openings too instead of being able to simply play and hone your skill against the wits of the opponent in front of you, instead of the dead corpses of all the GMs before whose games they studied.
I really don't want to play Caro-Kann all over again, I'd like to play my own games.