If people want to save the $2,500 SC fee or whatever it's going to be, then great. But don't clutter up a perfectly good, best in class fast charging network with hinky poo-poo schemes.
Go get a ChaDeMo adapter and use ChaDeMos via, hopefully in your area by then, a nice $19.95/month unlimited use plan.
Let's say you own the car 5 years. And you plan 2 trips a year of 2,000 miles round trip each. That's roughly 200 SC visits, including sightseeing while at yer destinations.
Poo-poo won't save you nearly as much as you think. Subscription-based or poo-poo based.
There's a reason why people will gladly order their M3s without SC access. It's because they won't use SCs.
As long as the cars come with the hardware and as long as it is unlocked such that ChaDeMos can be used, there is no justifiable reason to add friction to a frictionless system of SCs.
If you want the fastest charging, then pay for it up front or enable it later for a slightly higher fee.
If you really think you will only use fast charging "once in a while", then for you, there are ChaDeMo. $491 for the adapter (delivered, with tax if in CA), and either $19.95/month or per session.
I'd guess 70/30 would be the split for/not, but we can't really guess until the SC enablement cost is known.
For a family with a perfectly good minivan and a garage in a town without SCs, paying for SCing won't happen.
An apartment dweller in Burbank would probably opt for SCing and for the up front cost.
It's not rocket science. It's capacity management and Tesla's commitment to density as well as distance has done just fine so far. Other than for persecuting locals, poo-poo serves little purpose.