ristac: a god broadband connection is definitely something to consider when moving house, but I hardly think it's a good primary reason to choose. If I was that bothered about Virgin I wouldn't be moving to the house, would I?
Besides, now fttc is being rolled out Virgin's offering isn't quite so comparitively spectacular. Plus I'm somewhat sick of Virgin announcing ever-increasing speds when they can't even service big chunks of residential Greater Manchester. So I'd be disinclined to go Virgin even if I could,
tbh....