Re: slightly OT ,,
"has anyone any experience as to whether broadband (or lack thereof) has ever played a part in house pricing ?"
I suspect it's going to be like telephone service and public utilities. Some people wouldn't buy a house on a septic system or well water. Not too long ago a land line would have been a firm requirement on a home. Would you buy a house that didn't have cell service? I'm sure cable TV and Internet is a determining factor in some home purchases. Particularly new houses. I installed Google Fiber at my 70yo house (that is currently vacant) just because I knew it could be a selling point at a later date.