This was the first time I felt like being on the ipv6 network. I also wonder why I was not able to access to ipv4 servers, I assume that in India people have no problem accessing ipv4 only networks.
Anyway - this was the first time I had to deal with ipv6 :)
On the business side. One ipv4 costs us $3/mo. We never had any problem with this, didn't feel any business reason to upgrade and in particular we (as most of the companies) do not have any permanent test of ipv6 connectivity going on. So even if this had been setup at some point, we would never notice a regression here.
So - unless our customers started asking for ipv6, government pushed some regulation or the address' prise would go up - I do not think we will do anything about ipv6, like most other companies.