You know WHY Lucasfilm put out Clone Wars, don't you? Not out of the goodness of their hearts.
Lucas and his people understood that it would be a decade between films. They wanted to get that generation of kids hooked on Star Wars.
Nobody at Paramount has that kind of foresight. If they did, they'd have the cast in studios doing audio and doing a decently made, canon, animated series based on the Five Year mission to get people ramped up for the next movie.
As far as getting kids hooked goes, SW has it over ST by far (as do all the comic book series). Therein lies the problem. It doesn't even have to do with the quality of the toys, but just what they are. A Spock doll or C3PO? Khan or Darth Vader? Kirk in uniform or a swashbuckling Han Solo? Data or R2D2? A light saber or a phaser? Which is cooler, a TIE fighter (with no pretense of being real) or the Enterprise (which pretends to be)?
Would a kid want to be Iron Man on Halloween or McCoy?
Disney is going to do all it can to work the Marvel characters it has legal rights to into its Florida theme parks. There's already a large "Star Wars" presence at the Disney Hollywood Studios. DC characters (at least used to) have a tie-in with Six Flags.
The closest thing to any of this I've seen in Trek over the years was a Borg-themed roller coaster at Paramount Kings Dominion around the time FC came out. That, and you could buy t-shirts with the Starfleet arrowhead on them. I guess the Las Vegas Trek experience would count, too. But that was hardly at a kid-friendly place.
Not to sound facetious, but comparatively speaking, what the hell is there in "Star Trek" to market to kids? Cultivating young fans seems to be an area where Trek will always lose out.