Pulled the box office data -- indeed, all along, Muppet movie becomes a really big hit only when general public considers it a "novelty" (as in new, or taking visuals to the new level, or something long forgotten). As I understand anything with Box Office / Budget ratio less than 2 is considered a flop, because of extra advertisement expenses and theater cuts. So run-of-the-mill "another muppet movie this year" is never a big hit.
Movie | Budget | Box Office | Ratio | Rank |
---|
The Muppet Movie (1979) | 8 M | 76.7 M | 9.6 | 1 |
The Great Muppet Caper (1981) | 14 M | 31.2 M | 2.2 | 5 |
The Muppets Take Manhattan (1984) | 8 M | 25.5 M | 3.2 | 3 |
The Muppet Christmas Carol (1992) | 12 M | 27.7 M | 2.3 | 4 |
Muppet Treasure Island (1996) | 31 M | 34.3 M | 1.1 | 7 |
Muppets From Space (1999) | 24 M | 16.3 M | 0.7 | 8 |
The Muppets (2011) | 45 M | 161.0 M | 3.6 | 2 |
Muppets Most Wanted (2014) | 55 M | 79.3 M | 1.4 | 6 |
Indeed, in this era of a big screen / small screen struggle, most people come to the movie theater mostly for eye candy, to see something exploding that they never saw exploding before, for mindblowing CGI, or for painstaking era reconstruction. I've read somewhere that even the big star names do not guarantee box office numbers anymore, the only exception being, somehow, Dwayne 'The Rock' Johnson.
What Muppets always excelled in was, instead, a character comedy sketch, that is mostly associated with recurring TV appearances -- which is, indeed, what Muppets were for the most of their history. 2015 series flopped mostly because it was tone deaf -- you cannot have a character comedy with characters twisted out of character.
I have a feeling that if returning to Jimmy Dean format, where short sketches written by Muppet writers (unlike SNL) would appear between this and that as a part of some bigger small-screen programme was possible, it would catch on with public immediately.
Just one of the possible opinions... =)