Gwen's death was not advertised months in advance, because comics were not advertised months in advance back in 1973. Mostly because of the internet. Let's face it, if you did not use the internet to see what comics were coming out, then they would not seem hyped to you. The internet is the number one source.
Was her death not over-hyped with the words you described? Hmm... Let's take a look.
Cover of Amazing Spider-man #544 and #545
544: "What would you do if you had ONE MORE DAY?"
545: "...AND WHILE YOU TRY TO FIGURE ALL OF THAT OUT DEAR MARVELITE, REMEMBER THAT... A LIFE HANGS IN THE BALANCE!"
Cover of Amazing Spider-man 121 and 122
121: "Someone CLOSE to me is about to DIE! SOMEONE I CANNOT SAVE! My spider-sense is never wrong! BUT WHO? WHO?" "NOT A TRICK! NOT AN IMAGINARY TALE-- BUT THE MOST STARTLINGLY UNEXPECTED TURNING POINT IN THIS WEB-SLINGERS ENTIRE LIFE! HOW CAN SPIDER-MAN GO ON, AFTER BEING FACED WITH THIS ALMOST UNBELIEVABLE DEATH?"
122: "Heads up wallcrawler! First I finished off Gwen Stacey, and now it's YOUR TURN!" "Wrong goblin! you murdered the only girl ill ever LOVE -- and now it's your turn!" "THE GOBLINS LAST STAND!"
Looks about the same to me.
And yes, everything that was hyped up in #121 and #122 turned out to be true. It was a turning point.
All that One More day is telling you is that someone will die. And that will probably hold true as well.
Also, The death of gwen was in a 2 issue arc.
Most arcs these days are what, 6 issues? OMD is 4 issues.
Today all comics are advertised months in advance. Just like Movies are.
Remember there was a time that movies posters did not give you any info, and there were no such thing as a "trailer"
Hmn, may look the same to you, but it sure doesn't FEEL the same or look the same to me. You have left out the other hype....such as the "DIRT NAP" comments, quotes...and the other stuff surrounding OMD, which has been advertised in magazines & other media...besides internet. Media in different forms DID exist back then, tho i CAN agree that the internet HAS opened things up more.
Comics DID advertise back then tho....thru ads...thru stan's soapbox...thru letter collums, checklists..etc...they talked about the world of "marvel" to the full extent they could at the time...as they do now i suppose, but not the same.
Also, IMO, comics back then didn't really DO "arcs"! They were pure 12 issues and an annual kinda thing. Sure, some storys generally overlapped back then, (bigger supporting casts!) with ongoing background stories, but they were nothing like the modern day "Arc".
The "ARC" is a very modern day trend, routine-thing. It often involves a length that can easily be put into a TPB and sold, and sometimes a different creative team is advertised in varying arcs.
Killing off MJ is not comparable to killing off Gwen at all.
Same way, if they had originally killed MJ, and if now they wanted to kill off Gwen...very cliche. These TALENTED MARVEL WRITERS CAN"T COME UP WITH ANYTHING ELSE BUT TO "KILL THE GIRL"? If this is so...time to hire writers that can write REAL WORLD stuff. Sheesh.
How COULD JQ think it is for the better? IS HE TRYING TO BE UN-ORIGINAL??? Is he all out of ideas, resorting to killing off anyone that gets close to Pete?? Leading to no reason for Pete to EVER date, it'd be pointless. And Ignoring 20 years of marriage and canon? Ignoring fans? Those all for the best?
JQ might as well just bring Gobby back (well, he already did)...and have GG kill MJ on a bridge already. Oy.
If they didn't spend as much time trying to find ways to kill MJ, or keep the marriage apart, etc...and spent that energy on writing realistic relationships & the exciting dynamics it could add to a superhero comic, we'd be ahead of the curve, and not about to cancel spidey comics to re-title them all Amazing so some fans will buy them more.