Why isn't there an American comic magazine similar to shonen jump?

DC and Marvel are currently publishing weekly comic series, although it is not like Shonen Jump where multiple chapters are published in a single magazine.

Marvel is publishing Wolverines, a weekly series about the anti-hero Wolverine's allies and friends.

DC had 3 ongoing series for 2014: Batman Eternal, Future's End, and Earth-2: World's End. All three ended their runs last week. Afterwards, DC has started a new weekly series today, Convergence.

DC also have several weekly digital-first series (Wolf Among Us, Sensational Comics, Injustice, etc) but those only have 11 pages each.

One of the main reason for the lack of weekly titles is that a single artist cannot draw a issue per week, since American comics typically are inked and colored. That was why all of the series mentioned above had a rotating crew of artists.

The same can be said with the writers of each series, as the writers are normally used to writing an issue per month. For Batman Eternal, there was 5 writers on the series, each working on a different plot thread: one handled the supernatural priest subplot, one on the villains story, another on the techno-virus subplot, and two working on the main story that brings all of them together.

The reason is cuz the mager companys are trying to get digital comics more fames less backpapper comics= tree friandly plus kids now a days only use phones so mist people only read books magazines and etc on their tablets phones and computers plus back then comics would come out once evry week or so but as time passed buy the marketing changed so did comics if u notice comic started at 25 cents then 75 then 1.00$ and now mist cost 3.00$

American comic market doesn't support weekly comics