I quick look thru '70 e-body fender tag info I have organized (2,011 cars):

960 have vinyl tops ~48%
2 floral ~0.1%
40 GATOR ~2% (20 Plymouths & 20 Dodges)
37 green ~2%
202 white ~10%
679 black ~34%

V1G by engine:
/6 = 1
318 2bbl = 10
340 4bbl = 2
340 6bbl = 16
383 2bbl = 2
383 4bbl = 4
440 4bbl = 2
440 6bbl = 2
426 HEMI = 1

The popularity of the T/A is skewing the numbers a bit, but .....

Over the past 40+ years tastes have changed, but the GATOR top was never a popular OPTION. Also, the majority of the colors that the cars would've been painted that received a GATOR top are NOT popular either.
Add in the complexity over the years of obtaining a GATOR top and today cars with them are few and far between.

The uniqueness of the look of the GATOR top makes it a "RARE FIND" today VS. the general distaste for "GREEN MOPARS" has made the V1F cars disappear.