I feel like they are because Im a single player too. I don't go online for various reasons, the main is way too much drama and the clique nature of online gaming. I loved the idea of the closed communities we had ala Burnout Paradise etc... but even then, my gaming skills are diminished greatly. I used to be the best at everything, but vision issues and reflexes keeps me at the lower level of gaming so thats an obstacle too.
I realized single player was becoming old news when that last great Star Wars game came out last year or two with no single player campaign. I just hope MLB doesn't go that route