80's series triggers get a bad rap. Only the most experienced shooter could tell the difference. I can't. That's why it doesn't matter to me and a S70 may have some other features that you don't want, like an ejection port that isn't lowered. That will ding the hell out of your brass if you want to reload it.
I had a 1990s ORM Series 80 (1991A1), and to tell you the truth, that trigger was cr@p (out of the box) compared to my other 1911s. On the other hand, I have a fairly recent Series 80 commander, and that trigger is very nice, almost imperceptable difference. So, Colt might have earned a bad rap on the Series 80s due to some QC issues some time ago. They really have improved.
My O1911 WW1 reissue has the nicest, crispest trigger of the bunch - but I suspect that is more a function of the Colt Custom shop than the Series 70v80 debate. I have a Series 70 reissue on order, so I'll be able to judge that one in a week or so.
I went for the Series 70 over 80 to avoid the plastic mainspring used in Series 80s (at least Colt used to, not sure currently - something I should have researched). The conventional ejection port does not bother me, my brass has not been too dinged up on other 1911s with the standard port.
I also wanted to go with a short trigger (though I will probably look for a raw trigger to replace the blued short trigger someday - matches the unfinished hammer more nicely, but now that's just cosmetics).
The Series 70 is also supposedly a bit better polished than the Series 80. We'll see - I saw some side by side in one LGS, and you really would be hard pressed to tell the difference. But I saw two side by side in another LGS, and the difference was very clear.
I was never a big fan of the Series 70 rollmark. Much prefer the roll marks used on the XSE or Series 80. But I can easily live with that.
So, my choice was get a Series 70, and maybe "upgrade" with 3dot high profile sights - or - go with a cheaper Series 80 and replace the mainspring, trigger and possibly hammer. Hmmm ... and then I found a Series 70 at the same price as the Series 80. Easy decision.
here ya go! cheap cell phone pic.
Congratulations on the new bouncing blue boy.