Where there is fibre, you may well find there is Virgin. BT ignore non cable areas. Instead they concentrate all their efforts in the area that virgin cable is. Trying to get the Virgin customers to swap to them.
I will give u an example;
go here: http://www.samknows.com/broadband/exchange_search
Type in Trowbridge. You will get 2 results. North Trowbridge and Trowbridge. You will see that North T hasn't got any cable and Trowbridge has. At first it looks like it is to do with the population density. And it probably does, but type Yeovil. And that thinking doesn't stack up. Yeovil has no Virgin cable and as far as I can find out we won't in the near future (2/3 years), and we are not going to get FTTC either. If what SamKnows is correct. Which it is.
In fact the SW is poorly covered by Virgin, where it is the population density argument doesn't stack up. And BT are going to these small villages/towns to install FTTC. And yet BT say it isn't profitable to install in rural areas.
So I can only conclude that BOTH BT and Virgin are lying.