hub2dee, it depends how you feel about yoour family and friends tbh, and also whether or not you'd consider a time-limited (eg 2 yr) or permanent move. Can't say I'm that close to my lot and din't give it a 2nd thought, but esp for the children, they really miss their grandparents, and the gp's really miss them. I don't think, for that reason, I could go further away than I am now (ch).
I do think being a foreigner in an english-speaking country to be a lot easier, but these are usually a lot further away.
I for one am really glad to have left UK, but make sure I stock up on my tea & biscuits for cheese & branston & GAP jeans every time I go back. Other advantage to being (relatively) close is I can drive back on my own, so when kids have school holidays I often bring them while dh has to stay at work, but the journey's doable single handedly and you then have the benefit of the car. 1st 4 years of living here we always flew, but now alwys drive.
If you've got any other Q's I'm happy to help, from the pov of a foreigner in a strange language nearby country