This with cheaper is not correct. For the 3BB VDSL I pay about 7600 Baht a year. If you take an 1000 Mbps True Move SIM with 70 GB a month you pay only about 1200 Baht a year. Perhaps I need 2 because 70 GB might not be enough. But then still only about 2400 a year. In addition I can move around and use it in my tablet or phone directly when needed.
I personally think that companies like 3BB with cable Internet will not have a bright future.