King Daniel wrote:
Canon or not, they're still part of Trek lore. Think of it like a writer of a new Batman movie not just watching prior Batman movies, but reading lots of old Batman comics too. To see the different ways the character and setting have been interpreted over the years. It's the same thing with Trek.
This is the way I like to view all of the different ALT-timelines in Trek, like DC's Multi-verse. To go off topic for a second, the plot of Turtles Forever, the Teenage Mutant Ninja Turtles 25th anniversary cartoon, presented all of the different takes on the Turtles (live action movies, Anime, 80's cartoon, 2003 cartoon, graphic novels, CGI movie, etc, etc) as ALL canon, but canon from varying dimensions. Thats definately an interesting thing to consider for Trek also.