$20/mo x 12 months = $240 annually.

$240 annual x 75 years = $18000

Almost free huh?

$12000 a year x 75 = $90000

If I could pay that in and lock it in for the duration, maybe I'd consider that, but no one is going to let you do that.

Y'all got some funny notions on "Free".

Then there's the whole issue of "What if Google gets bored?"