If cable-companies can figure-out how to transition users from their analog cable boxes to the digital ones, I'm sure ISPs can figure out how to transition their customers to IPv6-capable routers. It should be dead-simple for the ISP-leased routers, but for people with their own routers, it's still an ISP-level issue. They just need to tell their new customers that they need an IPv6 capable router, and to figure out a way to transition existing customers that own their routers.
My cable company lost my business when they last year began requiring a "box" to receive TV. I already had a newer digital-capable TV, and did not want yet another gadget and tangle of wires on my TV stand. It was the final straw, the other two being the cost and the low-value content.
I actually didn't drop them completely, but did fall back to "basic" (no box required) + internet (cheaper than internet alone, which is what I really wanted).
